22565228548 has 12 divisors (see below), whose sum is σ = 40452300252. Its totient is φ = 11007428480.

The previous prime is 22565228527. The next prime is 22565228557. The reversal of 22565228548 is 84582256522.

It can be written as a sum of positive squares in 2 ways, for example, as 4003345984 + 18561882564 = 63272^2 + 136242^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68796265 + ... + 68796592.

It is an arithmetic number, because the mean of its divisors is an integer number (3371025021).

Almost surely, 2^22565228548 is an apocalyptic number.

It is an amenable number.

22565228548 is a deficient number, since it is larger than the sum of its proper divisors (17887071704).

22565228548 is a wasteful number, since it uses less digits than its factorization.

22565228548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137592902 (or 137592900 counting only the distinct ones).

The product of its digits is 3072000, while the sum is 49.

The spelling of 22565228548 in words is "twenty-two billion, five hundred sixty-five million, two hundred twenty-eight thousand, five hundred forty-eight".