56639676 has 12 divisors (see below), whose sum is σ = 132159272. Its totient is φ = 18879888.

The previous prime is 56639663. The next prime is 56639707. The reversal of 56639676 is 67693665.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 2359975 + ... + 2359998.

Almost surely, 2^56639676 is an apocalyptic number.

It is an amenable number.

56639676 is an abundant number, since it is smaller than the sum of its proper divisors (75519596).

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

56639676 is a wasteful number, since it uses less digits than its factorization.

56639676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4719980 (or 4719978 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 48.

The square root of 56639676 is about 7525.9335633528. The cubic root of 56639676 is about 384.0374583685.

The spelling of 56639676 in words is "fifty-six million, six hundred thirty-nine thousand, six hundred seventy-six".