56831313 has 32 divisors (see below), whose sum is σ = 94878720. Its totient is φ = 29396160.

The previous prime is 56831309. The next prime is 56831351. The reversal of 56831313 is 31313865.

56831313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56831313 - 2² = 56831309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56831353) 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 31 ways as a sum of consecutive naturals, for example, 79803 + ... + 80511.

It is an arithmetic number, because the mean of its divisors is an integer number (2964960).

Almost surely, 2^56831313 is an apocalyptic number.

It is an amenable number.

56831313 is a deficient number, since it is larger than the sum of its proper divisors (38047407).

56831313 is a wasteful number, since it uses less digits than its factorization.

56831313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077.

The product of its digits is 6480, while the sum is 30.

The square root of 56831313 is about 7538.6545881875. The cubic root of 56831313 is about 384.4700934924.

It can be divided in two parts, 5683 and 1313, that added together give a palindrome (6996).

The spelling of 56831313 in words is "fifty-six million, eight hundred thirty-one thousand, three hundred thirteen".