56855616 has 56 divisors (see below), whose sum is σ = 159288480. Its totient is φ = 17836032.

The previous prime is 56855567. The next prime is 56855641. The reversal of 56855616 is 61655865.

It is a super-2 number, since 2×56855616² = 6465122141478912, which contains 22 as substring.

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, 5446 + ... + 11973.

Almost surely, 2^56855616 is an apocalyptic number.

It is an amenable number.

56855616 is an abundant number, since it is smaller than the sum of its proper divisors (102432864).

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

56855616 is a wasteful number, since it uses less digits than its factorization.

56855616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17451 (or 17441 counting only the distinct ones).

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

The square root of 56855616 is about 7540.2663082944. The cubic root of 56855616 is about 384.5248898397.

The spelling of 56855616 in words is "fifty-six million, eight hundred fifty-five thousand, six hundred sixteen".