23401437725 has 12 divisors (see below), whose sum is σ = 29031594240. Its totient is φ = 18712239600.

The previous prime is 23401437707. The next prime is 23401437743. The reversal of 23401437725 is 52773410432.

It is an interprime number because it is at equal distance from previous prime (23401437707) and next prime (23401437743).

It is not a de Polignac number, because 23401437725 - 2²⁶ = 23334328861 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168935 + ... + 274484.

It is an arithmetic number, because the mean of its divisors is an integer number (2419299520).

Almost surely, 2^23401437725 is an apocalyptic number.

23401437725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23401437725 is a deficient number, since it is larger than the sum of its proper divisors (5630156515).

23401437725 is a wasteful number, since it uses less digits than its factorization.

23401437725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445540 (or 445535 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 38.

The spelling of 23401437725 in words is "twenty-three billion, four hundred one million, four hundred thirty-seven thousand, seven hundred twenty-five".