22512500525 has 12 divisors (see below), whose sum is σ = 27921362100. Its totient is φ = 18006218880.

The previous prime is 22512500513. The next prime is 22512500537. The reversal of 22512500525 is 52500521522.

It is an interprime number because it is at equal distance from previous prime (22512500513) and next prime (22512500537).

It can be written as a sum of positive squares in 6 ways, for example, as 5900041 + 22506600484 = 2429^2 + 150022^2 .

It is not a de Polignac number, because 22512500525 - 2²⁸ = 22244065069 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 (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30131 + ... + 214319.

It is an arithmetic number, because the mean of its divisors is an integer number (2326780175).

Almost surely, 2^22512500525 is an apocalyptic number.

22512500525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22512500525 is a deficient number, since it is larger than the sum of its proper divisors (5408861575).

22512500525 is a wasteful number, since it uses less digits than its factorization.

22512500525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189088 (or 189083 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 29.

The spelling of 22512500525 in words is "twenty-two billion, five hundred twelve million, five hundred thousand, five hundred twenty-five".