22445252325 has 18 divisors (see below), whose sum is σ = 40201941234. Its totient is φ = 11970801120.

The previous prime is 22445252287. The next prime is 22445252381. The reversal of 22445252325 is 52325254422.

22445252325 is a `hidden beast` number, since 22 + 44 + 52 + 523 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 7670606724 + 14774645601 = 87582^2 + 121551^2 .

It is not a de Polignac number, because 22445252325 - 2⁹ = 22445251813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22445252325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 49878114 + ... + 49878563.

Almost surely, 2^22445252325 is an apocalyptic number.

22445252325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22445252325 is a deficient number, since it is larger than the sum of its proper divisors (17756688909).

22445252325 is a wasteful number, since it uses less digits than its factorization.

22445252325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99756693 (or 99756685 counting only the distinct ones).

The product of its digits is 192000, while the sum is 36.

The spelling of 22445252325 in words is "twenty-two billion, four hundred forty-five million, two hundred fifty-two thousand, three hundred twenty-five".