56717320 has 32 divisors (see below), whose sum is σ = 139216320. Its totient is φ = 20624320.

The previous prime is 56717293. The next prime is 56717327. The reversal of 56717320 is 2371765.

It is not an unprimeable number, because it can be changed into a prime (56717327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64012 + ... + 64891.

It is an arithmetic number, because the mean of its divisors is an integer number (4350510).

Almost surely, 2^56717320 is an apocalyptic number.

It is an amenable number.

56717320 is an abundant number, since it is smaller than the sum of its proper divisors (82499000).

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

56717320 is a wasteful number, since it uses less digits than its factorization.

56717320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128925 (or 128921 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 56717320 is about 7531.0902265210. The cubic root of 56717320 is about 384.2128630291.

The spelling of 56717320 in words is "fifty-six million, seven hundred seventeen thousand, three hundred twenty".