55913 has 16 divisors (see below), whose sum is σ = 72576. Its totient is φ = 42240.

The previous prime is 55903. The next prime is 55921. The reversal of 55913 is 31955.

It is not a de Polignac number, because 55913 - 2⁴ = 55897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2420 + ... + 2442.

It is an arithmetic number, because the mean of its divisors is an integer number (4536).

2⁵⁵⁹¹³ is an apocalyptic number.

It is an amenable number.

55913 is a deficient number, since it is larger than the sum of its proper divisors (16663).

55913 is a wasteful number, since it uses less digits than its factorization.

55913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64.

The product of its digits is 675, while the sum is 23.

The square root of 55913 is about 236.4592988233. The cubic root of 55913 is about 38.2388008850.

The spelling of 55913 in words is "fifty-five thousand, nine hundred thirteen".