56520315 has 64 divisors (see below), whose sum is σ = 106444800. Its totient is φ = 28397952.

The previous prime is 56520301. The next prime is 56520337. The reversal of 56520315 is 51302565.

56520315 is a `hidden beast` number, since 5 + 652 + 0 + 3 + 1 + 5 = 666.

It is not a de Polignac number, because 56520315 - 2¹⁰ = 56519291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 338362 + ... + 338528.

It is an arithmetic number, because the mean of its divisors is an integer number (1663200).

Almost surely, 2^56520315 is an apocalyptic number.

56520315 is a deficient number, since it is larger than the sum of its proper divisors (49924485).

56520315 is a wasteful number, since it uses less digits than its factorization.

56520315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 56520315 is about 7517.9994014365. Note that the first 3 decimals coincide. The cubic root of 56520315 is about 383.7674984152.

The spelling of 56520315 in words is "fifty-six million, five hundred twenty thousand, three hundred fifteen".