56515065 has 8 divisors (see below), whose sum is σ = 90424128. Its totient is φ = 30141360.

The previous prime is 56515061. The next prime is 56515073. The reversal of 56515065 is 56051565.

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

It is not a de Polignac number, because 56515065 - 2² = 56515061 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56515061) 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 7 ways as a sum of consecutive naturals, for example, 1883821 + ... + 1883850.

It is an arithmetic number, because the mean of its divisors is an integer number (11303016).

Almost surely, 2^56515065 is an apocalyptic number.

It is an amenable number.

56515065 is a deficient number, since it is larger than the sum of its proper divisors (33909063).

56515065 is a wasteful number, since it uses less digits than its factorization.

56515065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767679.

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

The square root of 56515065 is about 7517.6502312890. The cubic root of 56515065 is about 383.7556157157.

The spelling of 56515065 in words is "fifty-six million, five hundred fifteen thousand, sixty-five".