55523568 has 20 divisors (see below), whose sum is σ = 143436008. Its totient is φ = 18507840.

The previous prime is 55523563. The next prime is 55523579. The reversal of 55523568 is 86532555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55523561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578323 + ... + 578418.

Almost surely, 2^55523568 is an apocalyptic number.

It is an amenable number.

55523568 is an abundant number, since it is smaller than the sum of its proper divisors (87912440).

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

55523568 is a wasteful number, since it uses less digits than its factorization.

55523568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156752 (or 1156746 counting only the distinct ones).

The product of its digits is 180000, while the sum is 39.

The square root of 55523568 is about 7451.4138255770. The cubic root of 55523568 is about 381.4981669038.

The spelling of 55523568 in words is "fifty-five million, five hundred twenty-three thousand, five hundred sixty-eight".