56978115 has 16 divisors (see below), whose sum is σ = 92004000. Its totient is φ = 30108672.

The previous prime is 56978081. The next prime is 56978137. The reversal of 56978115 is 51187965.

It is not a de Polignac number, because 56978115 - 2⁹ = 56977603 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15790 + ... + 19059.

It is an arithmetic number, because the mean of its divisors is an integer number (5750250).

Almost surely, 2^56978115 is an apocalyptic number.

56978115 is a deficient number, since it is larger than the sum of its proper divisors (35025885).

56978115 is a wasteful number, since it uses less digits than its factorization.

56978115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34966.

The product of its digits is 75600, while the sum is 42.

The square root of 56978115 is about 7548.3849265919. The cubic root of 56978115 is about 384.8008527600.

The spelling of 56978115 in words is "fifty-six million, nine hundred seventy-eight thousand, one hundred fifteen".