56515464 has 48 divisors (see below), whose sum is σ = 153745020. Its totient is φ = 18754560.

The previous prime is 56515453. The next prime is 56515471. The reversal of 56515464 is 46451565.

It can be written as a sum of positive squares in 2 ways, for example, as 50552100 + 5963364 = 7110^2 + 2442^2 .

It is a super-2 number, since 2×56515464² = 6387995342270592, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15724 + ... + 18980.

Almost surely, 2^56515464 is an apocalyptic number.

It is an amenable number.

56515464 is an abundant number, since it is smaller than the sum of its proper divisors (97229556).

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

56515464 is a wasteful number, since it uses less digits than its factorization.

56515464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3510 (or 3503 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 56515464 is about 7517.6767687897. The cubic root of 56515464 is about 383.7565188267.

The spelling of 56515464 in words is "fifty-six million, five hundred fifteen thousand, four hundred sixty-four".