22597991125 has 16 divisors (see below), whose sum is σ = 28215982080. Its totient is φ = 18069618000.

The previous prime is 22597991113. The next prime is 22597991137. The reversal of 22597991125 is 52119979522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22597991113) and next prime (22597991137).

It is not a de Polignac number, because 22597991125 - 2⁷ = 22597990997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221056 + ... + 306694.

It is an arithmetic number, because the mean of its divisors is an integer number (1763498880).

Almost surely, 2^22597991125 is an apocalyptic number.

22597991125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22597991125 is a deficient number, since it is larger than the sum of its proper divisors (5617990955).

22597991125 is an equidigital number, since it uses as much as digits as its factorization.

22597991125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87765 (or 87755 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 52.

The spelling of 22597991125 in words is "twenty-two billion, five hundred ninety-seven million, nine hundred ninety-one thousand, one hundred twenty-five".