23525013 has 4 divisors (see below), whose sum is σ = 31366688. Its totient is φ = 15683340.

The previous prime is 23524997. The next prime is 23525017. The reversal of 23525013 is 31052532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23525013 - 2⁴ = 23524997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23525017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3920833 + ... + 3920838.

It is an arithmetic number, because the mean of its divisors is an integer number (7841672).

Almost surely, 2^23525013 is an apocalyptic number.

It is an amenable number.

23525013 is a deficient number, since it is larger than the sum of its proper divisors (7841675).

23525013 is an equidigital number, since it uses as much as digits as its factorization.

23525013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7841674.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 23525013 is about 4850.2590652459. The cubic root of 23525013 is about 286.5343044670.

Adding to 23525013 its reverse (31052532), we get a palindrome (54577545).

The spelling of 23525013 in words is "twenty-three million, five hundred twenty-five thousand, thirteen".