22541423557 has 2 divisors, whose sum is σ = 22541423558. Its totient is φ = 22541423556.

The previous prime is 22541423551. The next prime is 22541423561. The reversal of 22541423557 is 75532414522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18106662721 + 4434760836 = 134561^2 + 66594^2 .

It is a cyclic number.

It is not a de Polignac number, because 22541423557 - 2²³ = 22533034949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22541423551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11270711778 + 11270711779.

It is an arithmetic number, because the mean of its divisors is an integer number (11270711779).

Almost surely, 2^22541423557 is an apocalyptic number.

It is an amenable number.

22541423557 is a deficient number, since it is larger than the sum of its proper divisors (1).

22541423557 is an equidigital number, since it uses as much as digits as its factorization.

22541423557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336000, while the sum is 40.

The spelling of 22541423557 in words is "twenty-two billion, five hundred forty-one million, four hundred twenty-three thousand, five hundred fifty-seven".