22553155529 has 2 divisors, whose sum is σ = 22553155530. Its totient is φ = 22553155528.

The previous prime is 22553155453. The next prime is 22553155549. The reversal of 22553155529 is 92555135522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22178655625 + 374499904 = 148925^2 + 19352^2 .

It is a cyclic number.

It is not a de Polignac number, because 22553155529 - 2²⁴ = 22536378313 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22553155529.

It is not a weakly prime, because it can be changed into another prime (22553155549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11276577764 + 11276577765.

It is an arithmetic number, because the mean of its divisors is an integer number (11276577765).

Almost surely, 2^22553155529 is an apocalyptic number.

It is an amenable number.

22553155529 is a deficient number, since it is larger than the sum of its proper divisors (1).

22553155529 is an equidigital number, since it uses as much as digits as its factorization.

22553155529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 675000, while the sum is 44.

The spelling of 22553155529 in words is "twenty-two billion, five hundred fifty-three million, one hundred fifty-five thousand, five hundred twenty-nine".