23401525 has 12 divisors (see below), whose sum is σ = 33163552. Its totient is φ = 16046640.

The previous prime is 23401523. The next prime is 23401549. The reversal of 23401525 is 52510432.

It is not a de Polignac number, because 23401525 - 2¹ = 23401523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23401496 and 23401505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23401523) 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, 66687 + ... + 67036.

Almost surely, 2^23401525 is an apocalyptic number.

23401525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23401525 is a deficient number, since it is larger than the sum of its proper divisors (9762027).

23401525 is a wasteful number, since it uses less digits than its factorization.

23401525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133740 (or 133735 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 23401525 is about 4837.5122738862. The cubic root of 23401525 is about 286.0320639879.

Adding to 23401525 its reverse (52510432), we get a palindrome (75911957).

The spelling of 23401525 in words is "twenty-three million, four hundred one thousand, five hundred twenty-five".