56906664 has 16 divisors (see below), whose sum is σ = 142266720. Its totient is φ = 18968880.

The previous prime is 56906659. The next prime is 56906677. The reversal of 56906664 is 46660965.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1185532 + ... + 1185579.

It is an arithmetic number, because the mean of its divisors is an integer number (8891670).

Almost surely, 2^56906664 is an apocalyptic number.

It is an amenable number.

56906664 is an abundant number, since it is smaller than the sum of its proper divisors (85360056).

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

56906664 is a wasteful number, since it uses less digits than its factorization.

56906664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371120 (or 2371116 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 56906664 is about 7543.6505751526. The cubic root of 56906664 is about 384.6399377228.

The spelling of 56906664 in words is "fifty-six million, nine hundred six thousand, six hundred sixty-four".