56005165 has 4 divisors (see below), whose sum is σ = 67206204. Its totient is φ = 44804128.

The previous prime is 56005129. The next prime is 56005171. The reversal of 56005165 is 56150065.

56005165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18096516 + 37908649 = 4254^2 + 6157^2 .

It is a cyclic number.

It is not a de Polignac number, because 56005165 - 2²⁵ = 22450733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5600512 + ... + 5600521.

It is an arithmetic number, because the mean of its divisors is an integer number (16801551).

Almost surely, 2^56005165 is an apocalyptic number.

It is an amenable number.

56005165 is a deficient number, since it is larger than the sum of its proper divisors (11201039).

56005165 is a wasteful number, since it uses less digits than its factorization.

56005165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11201038.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 56005165 is about 7483.6598666695. The cubic root of 56005165 is about 382.5979984424.

The spelling of 56005165 in words is "fifty-six million, five thousand, one hundred sixty-five".