22513523125 has 20 divisors (see below), whose sum is σ = 28529192736. Its totient is φ = 17757110000.

The previous prime is 22513523119. The next prime is 22513523167. The reversal of 22513523125 is 52132531522.

It is not a de Polignac number, because 22513523125 - 2⁵ = 22513523093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 209299 + ... + 298048.

Almost surely, 2^22513523125 is an apocalyptic number.

22513523125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22513523125 is a deficient number, since it is larger than the sum of its proper divisors (6015669611).

22513523125 is an frugal number, since it uses more digits than its factorization.

22513523125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507438 (or 507423 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The spelling of 22513523125 in words is "twenty-two billion, five hundred thirteen million, five hundred twenty-three thousand, one hundred twenty-five".