56117216 has 48 divisors (see below), whose sum is σ = 113354640. Its totient is φ = 27340800.

The previous prime is 56117209. The next prime is 56117227. The reversal of 56117216 is 61271165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313415 + ... + 313593.

It is an arithmetic number, because the mean of its divisors is an integer number (2361555).

Almost surely, 2^56117216 is an apocalyptic number.

It is an amenable number.

56117216 is an abundant number, since it is smaller than the sum of its proper divisors (57237424).

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

56117216 is a wasteful number, since it uses less digits than its factorization.

56117216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 379 counting only the distinct ones).

The product of its digits is 2520, while the sum is 29.

The square root of 56117216 is about 7491.1425029831. The cubic root of 56117216 is about 382.8529864085.

The spelling of 56117216 in words is "fifty-six million, one hundred seventeen thousand, two hundred sixteen".