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Number

55,921

55,921 is a prime, odd.

Deficient Number Prime Sexy Prime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
22
Digital root
4
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
55,922

Primality

55,921 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 55921
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 55,921)
1 × 55921
First multiples
55,921 · 111,842 · 167,763 · 223,684 · 279,605 · 335,526 · 391,447 · 447,368 · 503,289 · 559,210

Representations

In words
fifty-five thousand nine hundred twenty-one
Ordinal
55921st
Binary
1101101001110001
Octal
155161
Hexadecimal
DA71

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 55,903 (gap of 18)
  • Next prime: 55,927 (gap of 6)

Pair status: sexy with 55927.

Hex color
#00DA71
RGB(0, 218, 113)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.218.113.