56515316 has 48 divisors (see below), whose sum is σ = 120234240. Its totient is φ = 22888320.

The previous prime is 56515313. The next prime is 56515337. The reversal of 56515316 is 61351565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56515313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14885 + ... + 18291.

It is an arithmetic number, because the mean of its divisors is an integer number (2504880).

Almost surely, 2^56515316 is an apocalyptic number.

It is an amenable number.

56515316 is an abundant number, since it is smaller than the sum of its proper divisors (63718924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56515316 is a wasteful number, since it uses less digits than its factorization.

56515316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464 (or 3462 counting only the distinct ones).

The product of its digits is 13500, while the sum is 32.

The square root of 56515316 is about 7517.6669253167. Note that the first 3 decimals coincide. The cubic root of 56515316 is about 383.7561838386.

The spelling of 56515316 in words is "fifty-six million, five hundred fifteen thousand, three hundred sixteen".