23525531 has 2 divisors, whose sum is σ = 23525532. Its totient is φ = 23525530.

The previous prime is 23525519. The next prime is 23525533. The reversal of 23525531 is 13552532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23525531 - 2¹⁰ = 23524507 is a prime.

It is a super-2 number, since 2×23525531² = 1106901217663922, which contains 22 as substring.

Together with 23525533, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_1479203 and since 23525531 and 1479203 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23525531.

It is not a weakly prime, because it can be changed into another prime (23525533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11762765 + 11762766.

It is an arithmetic number, because the mean of its divisors is an integer number (11762766).

Almost surely, 2^23525531 is an apocalyptic number.

23525531 is a deficient number, since it is larger than the sum of its proper divisors (1).

23525531 is an equidigital number, since it uses as much as digits as its factorization.

23525531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4500, while the sum is 26.

The square root of 23525531 is about 4850.3124641615. The cubic root of 23525531 is about 286.5364075289.

The spelling of 23525531 in words is "twenty-three million, five hundred twenty-five thousand, five hundred thirty-one".