22663325525 has 12 divisors (see below), whose sum is σ = 28104637572. Its totient is φ = 18129296640.

The previous prime is 22663325519. The next prime is 22663325593. The reversal of 22663325525 is 52552336622.

It can be written as a sum of positive squares in 6 ways, for example, as 8173425649 + 14489899876 = 90407^2 + 120374^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22663325525 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, 427379 + ... + 477471.

It is an arithmetic number, because the mean of its divisors is an integer number (2342053131).

Almost surely, 2^22663325525 is an apocalyptic number.

22663325525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22663325525 is a deficient number, since it is larger than the sum of its proper divisors (5441312047).

22663325525 is a wasteful number, since it uses less digits than its factorization.

22663325525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68200 (or 68195 counting only the distinct ones).

The product of its digits is 648000, while the sum is 41.

The spelling of 22663325525 in words is "twenty-two billion, six hundred sixty-three million, three hundred twenty-five thousand, five hundred twenty-five".