56906015 has 4 divisors (see below), whose sum is σ = 68287224. Its totient is φ = 45524808.

The previous prime is 56905997. The next prime is 56906023. The reversal of 56906015 is 51060965.

56906015 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 is a cyclic number.

It is not a de Polignac number, because 56906015 - 2⁸ = 56905759 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, 5690597 + ... + 5690606.

It is an arithmetic number, because the mean of its divisors is an integer number (17071806).

Almost surely, 2^56906015 is an apocalyptic number.

56906015 is a deficient number, since it is larger than the sum of its proper divisors (11381209).

56906015 is a wasteful number, since it uses less digits than its factorization.

56906015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11381208.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 56906015 is about 7543.6075587215. The cubic root of 56906015 is about 384.6384754906.

The spelling of 56906015 in words is "fifty-six million, nine hundred six thousand, fifteen".