23056815 has 16 divisors (see below), whose sum is σ = 37749888. Its totient is φ = 12010656.

The previous prime is 23056783. The next prime is 23056829. The reversal of 23056815 is 51865032.

It is not a de Polignac number, because 23056815 - 2⁵ = 23056783 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 17229 + ... + 18518.

It is an arithmetic number, because the mean of its divisors is an integer number (2359368).

Almost surely, 2^23056815 is an apocalyptic number.

23056815 is a deficient number, since it is larger than the sum of its proper divisors (14693073).

23056815 is a wasteful number, since it uses less digits than its factorization.

23056815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35798.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 23056815 is about 4801.7512430362. The cubic root of 23056815 is about 284.6206710917.

It can be divided in two parts, 23056 and 815, that added together give a triangular number (23871 = T₂₁₈).

The spelling of 23056815 in words is "twenty-three million, fifty-six thousand, eight hundred fifteen".