56809680 has 40 divisors (see below), whose sum is σ = 176110752. Its totient is φ = 15149184.

The previous prime is 56809667. The next prime is 56809721. The reversal of 56809680 is 8690865.

It is a tau number, because it is divible by the number of its divisors (40).

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, 118114 + ... + 118593.

Almost surely, 2^56809680 is an apocalyptic number.

It is an amenable number.

56809680 is an abundant number, since it is smaller than the sum of its proper divisors (119301072).

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

56809680 is a wasteful number, since it uses less digits than its factorization.

56809680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236723 (or 236717 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 56809680 is about 7537.2196465275. The cubic root of 56809680 is about 384.4213040919.

The spelling of 56809680 in words is "fifty-six million, eight hundred nine thousand, six hundred eighty".