56915992 has 16 divisors (see below), whose sum is σ = 121962960. Its totient is φ = 24392544.

The previous prime is 56915987. The next prime is 56916023. The reversal of 56915992 is 29951965.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508123 + ... + 508234.

It is an arithmetic number, because the mean of its divisors is an integer number (7622685).

Almost surely, 2^56915992 is an apocalyptic number.

It is an amenable number.

56915992 is an abundant number, since it is smaller than the sum of its proper divisors (65046968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56915992 is a wasteful number, since it uses less digits than its factorization.

56915992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016370 (or 1016366 counting only the distinct ones).

The product of its digits is 218700, while the sum is 46.

The square root of 56915992 is about 7544.2688181162. The cubic root of 56915992 is about 384.6609529845.

It can be divided in two parts, 569 and 15992, that added together give a palindrome (16561).

The spelling of 56915992 in words is "fifty-six million, nine hundred fifteen thousand, nine hundred ninety-two".