22555550005 has 4 divisors (see below), whose sum is σ = 27066660012. Its totient is φ = 18044440000.

The previous prime is 22555549957. The next prime is 22555550011. The reversal of 22555550005 is 50005555522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8583837201 + 13971712804 = 92649^2 + 118202^2 .

It is not a de Polignac number, because 22555550005 - 2²⁷ = 22421332277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2255554996 + ... + 2255555005.

It is an arithmetic number, because the mean of its divisors is an integer number (6766665003).

Almost surely, 2^22555550005 is an apocalyptic number.

It is an amenable number.

22555550005 is a deficient number, since it is larger than the sum of its proper divisors (4511110007).

22555550005 is an equidigital number, since it uses as much as digits as its factorization.

22555550005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511110006.

The product of its (nonzero) digits is 62500, while the sum is 34.

The spelling of 22555550005 in words is "twenty-two billion, five hundred fifty-five million, five hundred fifty thousand, five".