56515460 has 12 divisors (see below), whose sum is σ = 118682508. Its totient is φ = 22606176.

The previous prime is 56515453. The next prime is 56515471. The reversal of 56515460 is 6451565.

It can be written as a sum of positive squares in 2 ways, for example, as 13060996 + 43454464 = 3614^2 + 6592^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1412867 + ... + 1412906.

It is an arithmetic number, because the mean of its divisors is an integer number (9890209).

Almost surely, 2^56515460 is an apocalyptic number.

It is an amenable number.

56515460 is an abundant number, since it is smaller than the sum of its proper divisors (62167048).

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

56515460 is a wasteful number, since it uses less digits than its factorization.

56515460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2825782 (or 2825780 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 56515460 is about 7517.6765027500. The cubic root of 56515460 is about 383.7565097730.

It can be divided in two parts, 5651 and 5460, that added together give a palindrome (11111).

The spelling of 56515460 in words is "fifty-six million, five hundred fifteen thousand, four hundred sixty".