56501516 has 48 divisors (see below), whose sum is σ = 108783360. Its totient is φ = 25583040.

The previous prime is 56501509. The next prime is 56501537. The reversal of 56501516 is 61510565.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199511 + ... + 199793.

It is an arithmetic number, because the mean of its divisors is an integer number (2266320).

Almost surely, 2^56501516 is an apocalyptic number.

It is an amenable number.

56501516 is a deficient number, since it is larger than the sum of its proper divisors (52281844).

56501516 is a wasteful number, since it uses less digits than its factorization.

56501516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 56501516 is about 7516.7490313300. The cubic root of 56501516 is about 383.7249458969.

The spelling of 56501516 in words is "fifty-six million, five hundred one thousand, five hundred sixteen".