56505165 has 8 divisors (see below), whose sum is σ = 90408288. Its totient is φ = 30136080.

The previous prime is 56505151. The next prime is 56505199. The reversal of 56505165 is 56150565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56505165 - 2⁷ = 56505037 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1883491 + ... + 1883520.

It is an arithmetic number, because the mean of its divisors is an integer number (11301036).

Almost surely, 2^56505165 is an apocalyptic number.

It is an amenable number.

56505165 is a deficient number, since it is larger than the sum of its proper divisors (33903123).

56505165 is a wasteful number, since it uses less digits than its factorization.

56505165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767019.

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 56505165 is about 7516.9917520242. The cubic root of 56505165 is about 383.7332063371.

The spelling of 56505165 in words is "fifty-six million, five hundred five thousand, one hundred sixty-five".