56551316 has 48 divisors (see below), whose sum is σ = 109509120. Its totient is φ = 25436160.

The previous prime is 56551309. The next prime is 56551337. The reversal of 56551316 is 61315565.

It is a congruent number.

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, 292916 + ... + 293108.

It is an arithmetic number, because the mean of its divisors is an integer number (2281440).

Almost surely, 2^56551316 is an apocalyptic number.

It is an amenable number.

56551316 is a deficient number, since it is larger than the sum of its proper divisors (52957804).

56551316 is a wasteful number, since it uses less digits than its factorization.

56551316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 382 counting only the distinct ones).

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

The square root of 56551316 is about 7520.0609040087. The cubic root of 56551316 is about 383.8376501928.

The spelling of 56551316 in words is "fifty-six million, five hundred fifty-one thousand, three hundred sixteen".