23431825 has 12 divisors (see below), whose sum is σ = 30319488. Its totient is φ = 17930000.

The previous prime is 23431819. The next prime is 23431829. The reversal of 23431825 is 52813432.

It is not a de Polignac number, because 23431825 - 2³ = 23431817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23431793 and 23431802.

It is not an unprimeable number, because it can be changed into a prime (23431829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19801 + ... + 20950.

It is an arithmetic number, because the mean of its divisors is an integer number (2526624).

Almost surely, 2^23431825 is an apocalyptic number.

23431825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23431825 is a deficient number, since it is larger than the sum of its proper divisors (6887663).

23431825 is a wasteful number, since it uses less digits than its factorization.

23431825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40784 (or 40779 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 23431825 is about 4840.6430357960. The cubic root of 23431825 is about 286.1554609842.

The spelling of 23431825 in words is "twenty-three million, four hundred thirty-one thousand, eight hundred twenty-five".