22554188005 has 4 divisors (see below), whose sum is σ = 27065025612. Its totient is φ = 18043350400.

The previous prime is 22554187993. The next prime is 22554188011. The reversal of 22554188005 is 50088145522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50088145522 = 2 ⋅25044072761.

It can be written as a sum of positive squares in 2 ways, for example, as 13860117441 + 8694070564 = 117729^2 + 93242^2 .

It is not a de Polignac number, because 22554188005 - 2²⁹ = 22017317093 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 2255418796 + ... + 2255418805.

It is an arithmetic number, because the mean of its divisors is an integer number (6766256403).

Almost surely, 2^22554188005 is an apocalyptic number.

It is an amenable number.

22554188005 is a deficient number, since it is larger than the sum of its proper divisors (4510837607).

22554188005 is an equidigital number, since it uses as much as digits as its factorization.

22554188005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4510837606.

The product of its (nonzero) digits is 128000, while the sum is 40.

The spelling of 22554188005 in words is "twenty-two billion, five hundred fifty-four million, one hundred eighty-eight thousand, five".