22557422389 has 2 divisors, whose sum is σ = 22557422390. Its totient is φ = 22557422388.

The previous prime is 22557422357. The next prime is 22557422399. The reversal of 22557422389 is 98322475522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14714903025 + 7842519364 = 121305^2 + 88558^2 .

It is a cyclic number.

It is not a de Polignac number, because 22557422389 - 2⁵ = 22557422357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22557422399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11278711194 + 11278711195.

It is an arithmetic number, because the mean of its divisors is an integer number (11278711195).

Almost surely, 2^22557422389 is an apocalyptic number.

It is an amenable number.

22557422389 is a deficient number, since it is larger than the sum of its proper divisors (1).

22557422389 is an equidigital number, since it uses as much as digits as its factorization.

22557422389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2419200, while the sum is 49.

The spelling of 22557422389 in words is "twenty-two billion, five hundred fifty-seven million, four hundred twenty-two thousand, three hundred eighty-nine".