56349931 has 16 divisors (see below), whose sum is σ = 65069568. Its totient is φ = 48294400.

The previous prime is 56349913. The next prime is 56349947. The reversal of 56349931 is 13994365.

It is not a de Polignac number, because 56349931 - 2⁵ = 56349899 is a prime.

It is a super-2 number, since 2×56349931² = 6350629447409522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56349901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16395 + ... + 19531.

It is an arithmetic number, because the mean of its divisors is an integer number (4066848).

Almost surely, 2^56349931 is an apocalyptic number.

56349931 is a deficient number, since it is larger than the sum of its proper divisors (8719637).

56349931 is a wasteful number, since it uses less digits than its factorization.

56349931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242.

The product of its digits is 87480, while the sum is 40.

The square root of 56349931 is about 7506.6591104166. The cubic root of 56349931 is about 383.3814799429.

The spelling of 56349931 in words is "fifty-six million, three hundred forty-nine thousand, nine hundred thirty-one".