57320056 has 16 divisors (see below), whose sum is σ = 113797440. Its totient is φ = 26974080.

The previous prime is 57320033. The next prime is 57320059. The reversal of 57320056 is 65002375.

57320056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57320059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210600 + ... + 210871.

It is an arithmetic number, because the mean of its divisors is an integer number (7112340).

Almost surely, 2^57320056 is an apocalyptic number.

It is an amenable number.

57320056 is a deficient number, since it is larger than the sum of its proper divisors (56477384).

57320056 is a wasteful number, since it uses less digits than its factorization.

57320056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421494 (or 421490 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 57320056 is about 7571.0009906220. Note that the first 3 decimals coincide. The cubic root of 57320056 is about 385.5690825059.

The spelling of 57320056 in words is "fifty-seven million, three hundred twenty thousand, fifty-six".