56979115 has 4 divisors (see below), whose sum is σ = 68374944. Its totient is φ = 45583288.

The previous prime is 56979089. The next prime is 56979151. The reversal of 56979115 is 51197965.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56979115 - 2²⁵ = 23424683 is a prime.

It is a Duffinian 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, 5697907 + ... + 5697916.

It is an arithmetic number, because the mean of its divisors is an integer number (17093736).

Almost surely, 2^56979115 is an apocalyptic number.

56979115 is a deficient number, since it is larger than the sum of its proper divisors (11395829).

56979115 is a wasteful number, since it uses less digits than its factorization.

56979115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11395828.

The product of its digits is 85050, while the sum is 43.

The square root of 56979115 is about 7548.4511656366. The cubic root of 56979115 is about 384.8031039085.

The spelling of 56979115 in words is "fifty-six million, nine hundred seventy-nine thousand, one hundred fifteen".