23056513 has 8 divisors (see below), whose sum is σ = 23831168. Its totient is φ = 22289904.

The previous prime is 23056507. The next prime is 23056531. The reversal of 23056513 is 31565032.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23056513 - 2¹³ = 23048321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23056543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4120 + ... + 7942.

It is an arithmetic number, because the mean of its divisors is an integer number (2978896).

Almost surely, 2^23056513 is an apocalyptic number.

It is an amenable number.

23056513 is a deficient number, since it is larger than the sum of its proper divisors (774655).

23056513 is a wasteful number, since it uses less digits than its factorization.

23056513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4023.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 23056513 is about 4801.7197960731. The cubic root of 23056513 is about 284.6194284249.

The spelling of 23056513 in words is "twenty-three million, fifty-six thousand, five hundred thirteen".