23405625 has 80 divisors (see below), whose sum is σ = 46235200. Its totient is φ = 11664000.

The previous prime is 23405623. The next prime is 23405677. The reversal of 23405625 is 52650432.

23405625 is a `hidden beast` number, since 2 + 34 + 0 + 5 + 625 = 666.

It is not a de Polignac number, because 23405625 - 2¹ = 23405623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23405621) 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 79 ways as a sum of consecutive naturals, for example, 320589 + ... + 320661.

It is an arithmetic number, because the mean of its divisors is an integer number (577940).

Almost surely, 2^23405625 is an apocalyptic number.

23405625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23405625 is a deficient number, since it is larger than the sum of its proper divisors (22829575).

23405625 is an equidigital number, since it uses as much as digits as its factorization.

23405625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 23405625 is about 4837.9360268610. The cubic root of 23405625 is about 286.0487675002.

The spelling of 23405625 in words is "twenty-three million, four hundred five thousand, six hundred twenty-five".