22587050881 has 2 divisors, whose sum is σ = 22587050882. Its totient is φ = 22587050880.

The previous prime is 22587050873. The next prime is 22587050887. The reversal of 22587050881 is 18805078522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17304087025 + 5282963856 = 131545^2 + 72684^2 .

It is a cyclic number.

It is not a de Polignac number, because 22587050881 - 2³ = 22587050873 is a prime.

It is a super-2 number, since 2×22587050881² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22587050887) 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, 11293525440 + 11293525441.

It is an arithmetic number, because the mean of its divisors is an integer number (11293525441).

Almost surely, 2^22587050881 is an apocalyptic number.

It is an amenable number.

22587050881 is a deficient number, since it is larger than the sum of its proper divisors (1).

22587050881 is an equidigital number, since it uses as much as digits as its factorization.

22587050881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 358400, while the sum is 46.

The spelling of 22587050881 in words is "twenty-two billion, five hundred eighty-seven million, fifty thousand, eight hundred eighty-one".