22557422543 has 2 divisors, whose sum is σ = 22557422544. Its totient is φ = 22557422542.

The previous prime is 22557422539. The next prime is 22557422663. The reversal of 22557422543 is 34522475522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22557422543 - 2² = 22557422539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22557422543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22557422443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11278711271 + 11278711272.

It is an arithmetic number, because the mean of its divisors is an integer number (11278711272).

Almost surely, 2^22557422543 is an apocalyptic number.

22557422543 is a deficient number, since it is larger than the sum of its proper divisors (1).

22557422543 is an equidigital number, since it uses as much as digits as its factorization.

22557422543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672000, while the sum is 41.

The spelling of 22557422543 in words is "twenty-two billion, five hundred fifty-seven million, four hundred twenty-two thousand, five hundred forty-three".