22042504525 has 6 divisors (see below), whose sum is σ = 27332705642. Its totient is φ = 17634003600.

The previous prime is 22042504459. The next prime is 22042504529. The reversal of 22042504525 is 52540524022.

It can be written as a sum of positive squares in 3 ways, for example, as 25583364 + 22016921161 = 5058^2 + 148381^2 .

It is not a de Polignac number, because 22042504525 - 2²⁷ = 21908286797 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 (22042504529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 440850066 + ... + 440850115.

Almost surely, 2^22042504525 is an apocalyptic number.

22042504525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22042504525 is a deficient number, since it is larger than the sum of its proper divisors (5290201117).

22042504525 is an equidigital number, since it uses as much as digits as its factorization.

22042504525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881700191 (or 881700186 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 31.

The spelling of 22042504525 in words is "twenty-two billion, forty-two million, five hundred four thousand, five hundred twenty-five".