22556354225 has 6 divisors (see below), whose sum is σ = 27969879270. Its totient is φ = 18045083360.

The previous prime is 22556354167. The next prime is 22556354231. The reversal of 22556354225 is 52245365522.

It can be written as a sum of positive squares in 3 ways, for example, as 2105066161 + 20451288064 = 45881^2 + 143008^2 .

It is not a de Polignac number, because 22556354225 - 2⁸ = 22556353969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 451127060 + ... + 451127109.

It is an arithmetic number, because the mean of its divisors is an integer number (4661646545).

Almost surely, 2^22556354225 is an apocalyptic number.

22556354225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22556354225 is a deficient number, since it is larger than the sum of its proper divisors (5413525045).

22556354225 is an equidigital number, since it uses as much as digits as its factorization.

22556354225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902254179 (or 902254174 counting only the distinct ones).

The product of its digits is 720000, while the sum is 41.

The spelling of 22556354225 in words is "twenty-two billion, five hundred fifty-six million, three hundred fifty-four thousand, two hundred twenty-five".