23525881 has 2 divisors, whose sum is σ = 23525882. Its totient is φ = 23525880.

The previous prime is 23525863. The next prime is 23525891. The reversal of 23525881 is 18852532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13571856 + 9954025 = 3684^2 + 3155^2 .

It is a cyclic number.

It is not a de Polignac number, because 23525881 - 2⁷ = 23525753 is a prime.

It is a super-2 number, since 2×23525881² = 1106934153652322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23525851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11762940 + 11762941.

It is an arithmetic number, because the mean of its divisors is an integer number (11762941).

Almost surely, 2^23525881 is an apocalyptic number.

It is an amenable number.

23525881 is a deficient number, since it is larger than the sum of its proper divisors (1).

23525881 is an equidigital number, since it uses as much as digits as its factorization.

23525881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19200, while the sum is 34.

The square root of 23525881 is about 4850.3485441770. The cubic root of 23525881 is about 286.5378284993.

The spelling of 23525881 in words is "twenty-three million, five hundred twenty-five thousand, eight hundred eighty-one".