56308320 has 72 divisors (see below), whose sum is σ = 192157056. Its totient is φ = 15015168.

The previous prime is 56308297. The next prime is 56308321. The reversal of 56308320 is 2380365.

56308320 is a `hidden beast` number, since 5 + 630 + 8 + 3 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56308321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18112 + ... + 20991.

It is an arithmetic number, because the mean of its divisors is an integer number (2668848).

Almost surely, 2^56308320 is an apocalyptic number.

It is an amenable number.

56308320 is an abundant number, since it is smaller than the sum of its proper divisors (135848736).

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

56308320 is a wasteful number, since it uses less digits than its factorization.

56308320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39124 (or 39113 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 56308320 is about 7503.8869927525. The cubic root of 56308320 is about 383.2870887293.

Adding to 56308320 its reverse (2380365), we get a palindrome (58688685).

The spelling of 56308320 in words is "fifty-six million, three hundred eight thousand, three hundred twenty".