22554505189 has 2 divisors, whose sum is σ = 22554505190. Its totient is φ = 22554505188.

The previous prime is 22554505093. The next prime is 22554505229. The reversal of 22554505189 is 98150545522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21795502689 + 759002500 = 147633^2 + 27550^2 .

It is a cyclic number.

It is not a de Polignac number, because 22554505189 - 2¹¹ = 22554503141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22554505289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11277252594 + 11277252595.

It is an arithmetic number, because the mean of its divisors is an integer number (11277252595).

Almost surely, 2^22554505189 is an apocalyptic number.

It is an amenable number.

22554505189 is a deficient number, since it is larger than the sum of its proper divisors (1).

22554505189 is an equidigital number, since it uses as much as digits as its factorization.

22554505189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720000, while the sum is 46.

The spelling of 22554505189 in words is "twenty-two billion, five hundred fifty-four million, five hundred five thousand, one hundred eighty-nine".