22553235517 has 2 divisors, whose sum is σ = 22553235518. Its totient is φ = 22553235516.

The previous prime is 22553235503. The next prime is 22553235563. The reversal of 22553235517 is 71553235522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14244183801 + 8309051716 = 119349^2 + 91154^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22553235517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22553235517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22553235587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11276617758 + 11276617759.

It is an arithmetic number, because the mean of its divisors is an integer number (11276617759).

Almost surely, 2^22553235517 is an apocalyptic number.

It is an amenable number.

22553235517 is a deficient number, since it is larger than the sum of its proper divisors (1).

22553235517 is an equidigital number, since it uses as much as digits as its factorization.

22553235517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 315000, while the sum is 40.

The spelling of 22553235517 in words is "twenty-two billion, five hundred fifty-three million, two hundred thirty-five thousand, five hundred seventeen".