56912978 has 8 divisors (see below), whose sum is σ = 85420668. Its totient is φ = 28439424.

The previous prime is 56912969. The next prime is 56912983. The reversal of 56912978 is 87921965.

It can be written as a sum of positive squares in 2 ways, for example, as 56896849 + 16129 = 7543^2 + 127^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 3851 + ... + 11342.

Almost surely, 2^56912978 is an apocalyptic number.

56912978 is a deficient number, since it is larger than the sum of its proper divisors (28507690).

56912978 is a wasteful number, since it uses less digits than its factorization.

56912978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17068.

The product of its digits is 272160, while the sum is 47.

The square root of 56912978 is about 7544.0690611897. The cubic root of 56912978 is about 384.6541629270.

The spelling of 56912978 in words is "fifty-six million, nine hundred twelve thousand, nine hundred seventy-eight".