56016915 has 16 divisors (see below), whose sum is σ = 90856608. Its totient is φ = 29465856.

The previous prime is 56016889. The next prime is 56016929. The reversal of 56016915 is 51961065.

It is not a de Polignac number, because 56016915 - 2⁹ = 56016403 is a prime.

It is a super-2 number, since 2×56016915² = 6275789532234450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24484 + ... + 26673.

It is an arithmetic number, because the mean of its divisors is an integer number (5678538).

Almost surely, 2^56016915 is an apocalyptic number.

56016915 is a deficient number, since it is larger than the sum of its proper divisors (34839693).

56016915 is a wasteful number, since it uses less digits than its factorization.

56016915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51238.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 56016915 is about 7484.4448691937. Note that the first 3 decimals coincide. The cubic root of 56016915 is about 382.6247531898.

The spelling of 56016915 in words is "fifty-six million, sixteen thousand, nine hundred fifteen".