22492765825 has 12 divisors (see below), whose sum is σ = 28137856428. Its totient is φ = 17834969600.

The previous prime is 22492765819. The next prime is 22492765853. The reversal of 22492765825 is 52856729422.

It can be written as a sum of positive squares in 6 ways, for example, as 5669638209 + 16823127616 = 75297^2 + 129704^2 .

It is not a de Polignac number, because 22492765825 - 2¹³ = 22492757633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3978196 + ... + 3983845.

It is an arithmetic number, because the mean of its divisors is an integer number (2344821369).

Almost surely, 2^22492765825 is an apocalyptic number.

22492765825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22492765825 is a deficient number, since it is larger than the sum of its proper divisors (5645090603).

22492765825 is a wasteful number, since it uses less digits than its factorization.

22492765825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7962164 (or 7962159 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 52.

The spelling of 22492765825 in words is "twenty-two billion, four hundred ninety-two million, seven hundred sixty-five thousand, eight hundred twenty-five".