56979680 has 24 divisors (see below), whose sum is σ = 134614872. Its totient is φ = 22791808.

The previous prime is 56979679. The next prime is 56979683. The reversal of 56979680 is 8697965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56979683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177902 + ... + 178221.

It is an arithmetic number, because the mean of its divisors is an integer number (5608953).

Almost surely, 2^56979680 is an apocalyptic number.

It is an amenable number.

56979680 is an abundant number, since it is smaller than the sum of its proper divisors (77635192).

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

56979680 is a wasteful number, since it uses less digits than its factorization.

56979680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356138 (or 356130 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 56979680 is about 7548.4885904398. The cubic root of 56979680 is about 384.8043757958.

The spelling of 56979680 in words is "fifty-six million, nine hundred seventy-nine thousand, six hundred eighty".