56406915 has 32 divisors (see below), whose sum is σ = 105561600. Its totient is φ = 28499040.

The previous prime is 56406899. The next prime is 56406937. The reversal of 56406915 is 51960465.

56406915 is a `hidden beast` number, since 5 + 640 + 6 + 9 + 1 + 5 = 666.

It is not a de Polignac number, because 56406915 - 2⁴ = 56406899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56406915.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8431 + ... + 13560.

It is an arithmetic number, because the mean of its divisors is an integer number (3298800).

Almost surely, 2^56406915 is an apocalyptic number.

56406915 is a deficient number, since it is larger than the sum of its proper divisors (49154685).

56406915 is a wasteful number, since it uses less digits than its factorization.

56406915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22024 (or 22018 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 56406915 is about 7510.4537146567. The cubic root of 56406915 is about 383.5106682125.

The spelling of 56406915 in words is "fifty-six million, four hundred six thousand, nine hundred fifteen".