23391825 has 24 divisors (see below), whose sum is σ = 39926016. Its totient is φ = 12072000.

The previous prime is 23391817. The next prime is 23391827. The reversal of 23391825 is 52819332.

It is not a de Polignac number, because 23391825 - 2³ = 23391817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23391827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2706 + ... + 7355.

It is an arithmetic number, because the mean of its divisors is an integer number (1663584).

Almost surely, 2^23391825 is an apocalyptic number.

23391825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23391825 is a deficient number, since it is larger than the sum of its proper divisors (16534191).

23391825 is a wasteful number, since it uses less digits than its factorization.

23391825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10105 (or 10100 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 23391825 is about 4836.5095885359. The cubic root of 23391825 is about 285.9925381528.

The spelling of 23391825 in words is "twenty-three million, three hundred ninety-one thousand, eight hundred twenty-five".