56117313 has 32 divisors (see below), whose sum is σ = 96024320. Its totient is φ = 31726080.

The previous prime is 56117311. The next prime is 56117333. The reversal of 56117313 is 31371165.

It is not a de Polignac number, because 56117313 - 2¹ = 56117311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (56117311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16803 + ... + 19863.

It is an arithmetic number, because the mean of its divisors is an integer number (3000760).

Almost surely, 2^56117313 is an apocalyptic number.

It is an amenable number.

56117313 is a deficient number, since it is larger than the sum of its proper divisors (39907007).

56117313 is a wasteful number, since it uses less digits than its factorization.

56117313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174 (or 3168 counting only the distinct ones).

The product of its digits is 1890, while the sum is 27.

The square root of 56117313 is about 7491.1489772931. The cubic root of 56117313 is about 382.8532069987.

Adding to 56117313 its reverse (31371165), we get a palindrome (87488478).

The spelling of 56117313 in words is "fifty-six million, one hundred seventeen thousand, three hundred thirteen".