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Number

55,001

55,001 is a prime, odd.

Arithmetic Number Chen Prime Deficient Number Evil Number Prime Pythagorean Prime Recamán's Sequence Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
11
Digit product
0
Digital root
2
Palindrome
No
Bit width
16 bits
Reversed
10,055
Recamán's sequence
a(141,553) = 55,001
Square (n²)
3,025,110,001
Cube (n³)
166,384,075,165,001
Divisor count
2
σ(n) — sum of divisors
55,002
φ(n) — Euler's totient
55,000

Primality

55,001 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 55001
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 55,001)
1 × 55001
First multiples
55,001 · 110,002 (double) · 165,003 · 220,004 · 275,005 · 330,006 · 385,007 · 440,008 · 495,009 · 550,010

Sums & aliquot sequence

As a sum of two squares: 155² + 176²
As consecutive integers: 27,500 + 27,501

Representations

In words
fifty-five thousand one
Ordinal
55001st
Binary
1101011011011001
Octal
153331
Hexadecimal
0xD6D9
Base64
1tk=
One's complement
10,534 (16-bit)
In other bases
ternary (3) 2210110002
quaternary (4) 31123121
quinary (5) 3230001
senary (6) 1102345
septenary (7) 316232
nonary (9) 83402
undecimal (11) 38361
duodecimal (12) 279b5
tridecimal (13) 1c05b
tetradecimal (14) 16089
pentadecimal (15) 1146b

Historical numeral systems

Babylonian (base 60)
𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓏺
Greek (Milesian)
͵νεαʹ
Mayan (base 20)
𝋦·𝋱·𝋪·𝋡
Chinese
五萬五千零一
Chinese (financial)
伍萬伍仟零壹
In other modern scripts
Eastern Arabic ٥٥٠٠١ Devanagari ५५००१ Bengali ৫৫০০১ Tamil ௫௫௦௦௧ Thai ๕๕๐๐๑ Tibetan ༥༥༠༠༡ Khmer ៥៥០០១ Lao ໕໕໐໐໑ Burmese ၅၅၀၀၁

Digit at this position in famous constants

π — Pi (π)
Digit 55,001 = 7
e — Euler's number (e)
Digit 55,001 = 7
φ — Golden ratio (φ)
Digit 55,001 = 6
√2 — Pythagoras's (√2)
Digit 55,001 = 9
ln 2 — Natural log of 2
Digit 55,001 = 1
γ — Euler-Mascheroni (γ)
Digit 55,001 = 8

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 54,983 (gap of 18)
  • Next prime: 55,009 (gap of 8)
Unicode codepoint
Hangul Syllable Hung
U+D6D9
Other letter (Lo)

UTF-8 encoding: ED 9B 99 (3 bytes).

Hex color
#00D6D9
RGB(0, 214, 217)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.214.217.

Address
0.0.214.217
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.214.217

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Position in π

The digit sequence 55001 first appears in π at position 116,145 of the decimal expansion (the 116,145ordinal-suffix:th digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.