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Number

55,819

55,819 is a prime, odd.

Cousin Prime Deficient Number Prime Sexy Prime Squarefree Twin Prime

Properties

Parity
Odd
Digit count
5
Digit sum
28
Digital root
1
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
55,820

Primality

55,819 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 55819
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 55,819)
1 × 55819
First multiples
55,819 · 111,638 · 167,457 · 223,276 · 279,095 · 334,914 · 390,733 · 446,552 · 502,371 · 558,190

Representations

In words
fifty-five thousand eight hundred nineteen
Ordinal
55819th
Binary
1101101000001011
Octal
155013
Hexadecimal
DA0B

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 55,817 (gap of 2)
  • Next prime: 55,823 (gap of 4)

Pair status: twin with 55817, cousin with 55823.

Hex color
#00DA0B
RGB(0, 218, 11)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.218.11.

Possible US bank routing number

This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.

Routing number
000055819
Federal Reserve
United States Government

Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.