23525921 has 8 divisors (see below), whose sum is σ = 24096384. Its totient is φ = 22962240.

The previous prime is 23525917. The next prime is 23525939. The reversal of 23525921 is 12952532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23525921 - 2² = 23525917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23525981) 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 7 ways as a sum of consecutive naturals, for example, 5705 + ... + 8921.

It is an arithmetic number, because the mean of its divisors is an integer number (3012048).

Almost surely, 2^23525921 is an apocalyptic number.

It is an amenable number.

23525921 is a deficient number, since it is larger than the sum of its proper divisors (570463).

23525921 is a wasteful number, since it uses less digits than its factorization.

23525921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391.

The product of its digits is 5400, while the sum is 29.

The square root of 23525921 is about 4850.3526675903. The cubic root of 23525921 is about 286.5379908950.

The spelling of 23525921 in words is "twenty-three million, five hundred twenty-five thousand, nine hundred twenty-one".