22974871525 has 6 divisors (see below), whose sum is σ = 28488840722. Its totient is φ = 18379897200.

The previous prime is 22974871499. The next prime is 22974871529. The reversal of 22974871525 is 52517847922.

It can be written as a sum of positive squares in 3 ways, for example, as 421439841 + 22553431684 = 20529^2 + 150178^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22974871525 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22974871529) 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, 459497406 + ... + 459497455.

Almost surely, 2^22974871525 is an apocalyptic number.

22974871525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22974871525 is a deficient number, since it is larger than the sum of its proper divisors (5513969197).

22974871525 is an equidigital number, since it uses as much as digits as its factorization.

22974871525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918994871 (or 918994866 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 52.

The spelling of 22974871525 in words is "twenty-two billion, nine hundred seventy-four million, eight hundred seventy-one thousand, five hundred twenty-five".