56557560 has 32 divisors (see below), whose sum is σ = 169673040. Its totient is φ = 15081984.

The previous prime is 56557559. The next prime is 56557607. The reversal of 56557560 is 6575565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235537 + ... + 235776.

Almost surely, 2^56557560 is an apocalyptic number.

It is an amenable number.

56557560 is an abundant number, since it is smaller than the sum of its proper divisors (113115480).

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

56557560 is a wasteful number, since it uses less digits than its factorization.

56557560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471327 (or 471323 counting only the distinct ones).

The product of its (nonzero) digits is 157500, while the sum is 39.

The square root of 56557560 is about 7520.4760487618. The cubic root of 56557560 is about 383.8517765607.

The spelling of 56557560 in words is "fifty-six million, five hundred fifty-seven thousand, five hundred sixty".