23625431 has 4 divisors (see below), whose sum is σ = 23691600. Its totient is φ = 23559264.

The previous prime is 23625421. The next prime is 23625451. The reversal of 23625431 is 13452632.

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 23625431 - 2⁶ = 23625367 is a prime.

It is a super-2 number, since 2×23625431² = 1116321979871522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23625431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23625421) 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, 32546 + ... + 33263.

It is an arithmetic number, because the mean of its divisors is an integer number (5922900).

Almost surely, 2^23625431 is an apocalyptic number.

23625431 is a deficient number, since it is larger than the sum of its proper divisors (66169).

23625431 is an equidigital number, since it uses as much as digits as its factorization.

23625431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66168.

The product of its digits is 4320, while the sum is 26.

The square root of 23625431 is about 4860.5998600996. The cubic root of 23625431 is about 286.9414223224.

The spelling of 23625431 in words is "twenty-three million, six hundred twenty-five thousand, four hundred thirty-one".