55568904 has 16 divisors (see below), whose sum is σ = 138922320. Its totient is φ = 18522960.

The previous prime is 55568893. The next prime is 55568917. The reversal of 55568904 is 40986555.

55568904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55568904² = 6175806183522432, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1157662 + ... + 1157709.

It is an arithmetic number, because the mean of its divisors is an integer number (8682645).

Almost surely, 2^55568904 is an apocalyptic number.

It is an amenable number.

55568904 is an abundant number, since it is smaller than the sum of its proper divisors (83353416).

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

55568904 is a wasteful number, since it uses less digits than its factorization.

55568904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315380 (or 2315376 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 42.

The square root of 55568904 is about 7454.4553120936. The cubic root of 55568904 is about 381.6019720461.

The spelling of 55568904 in words is "fifty-five million, five hundred sixty-eight thousand, nine hundred four".