56165517 has 36 divisors (see below), whose sum is σ = 86958144. Its totient is φ = 34914000.

The previous prime is 56165513. The next prime is 56165533. The reversal of 56165517 is 71556165.

It is not a de Polignac number, because 56165517 - 2² = 56165513 is a prime.

It is a super-3 number, since 3×56165517³ (a number of 24 digits) contains 333 as substring.

Its product of digits (31500) is a multiple of the sum of its prime factors (350).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56165513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 223642 + ... + 223892.

It is an arithmetic number, because the mean of its divisors is an integer number (2415504).

Almost surely, 2^56165517 is an apocalyptic number.

It is an amenable number.

56165517 is a deficient number, since it is larger than the sum of its proper divisors (30792627).

56165517 is a wasteful number, since it uses less digits than its factorization.

56165517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 324 counting only the distinct ones).

The product of its digits is 31500, while the sum is 36.

The square root of 56165517 is about 7494.3656836319. The cubic root of 56165517 is about 382.9627975054.

The spelling of 56165517 in words is "fifty-six million, one hundred sixty-five thousand, five hundred seventeen".