23164525 has 6 divisors (see below), whose sum is σ = 28724042. Its totient is φ = 18531600.

The previous prime is 23164507. The next prime is 23164529. The reversal of 23164525 is 52546132.

It can be written as a sum of positive squares in 3 ways, for example, as 335241 + 22829284 = 579^2 + 4778^2 .

It is a de Polignac number, because none of the positive numbers 2^k-23164525 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23164493 and 23164502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23164529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 463266 + ... + 463315.

Almost surely, 2^23164525 is an apocalyptic number.

23164525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23164525 is a deficient number, since it is larger than the sum of its proper divisors (5559517).

23164525 is an equidigital number, since it uses as much as digits as its factorization.

23164525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926591 (or 926586 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 23164525 is about 4812.9538747011. The cubic root of 23164525 is about 285.0631849238.

The spelling of 23164525 in words is "twenty-three million, one hundred sixty-four thousand, five hundred twenty-five".