22789635725 has 12 divisors (see below), whose sum is σ = 28263917556. Its totient is φ = 18228631680.

The previous prime is 22789635689. The next prime is 22789635733. The reversal of 22789635725 is 52753698722.

It can be written as a sum of positive squares in 6 ways, for example, as 5922379849 + 16867255876 = 76957^2 + 129874^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22789635725 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80489 + ... + 228161.

It is an arithmetic number, because the mean of its divisors is an integer number (2355326463).

Almost surely, 2^22789635725 is an apocalyptic number.

22789635725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22789635725 is a deficient number, since it is larger than the sum of its proper divisors (5474281831).

22789635725 is a wasteful number, since it uses less digits than its factorization.

22789635725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153856 (or 153851 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 56.

The spelling of 22789635725 in words is "twenty-two billion, seven hundred eighty-nine million, six hundred thirty-five thousand, seven hundred twenty-five".