22527881855 has 4 divisors (see below), whose sum is σ = 27033458232. Its totient is φ = 18022305480.

The previous prime is 22527881839. The next prime is 22527881861. The reversal of 22527881855 is 55818872522.

It is a happy number.

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

It is not a de Polignac number, because 22527881855 - 2⁴ = 22527881839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22527881797 and 22527881806.

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, 2252788181 + ... + 2252788190.

It is an arithmetic number, because the mean of its divisors is an integer number (6758364558).

Almost surely, 2^22527881855 is an apocalyptic number.

22527881855 is a deficient number, since it is larger than the sum of its proper divisors (4505576377).

22527881855 is an equidigital number, since it uses as much as digits as its factorization.

22527881855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4505576376.

The product of its digits is 3584000, while the sum is 53.

The spelling of 22527881855 in words is "twenty-two billion, five hundred twenty-seven million, eight hundred eighty-one thousand, eight hundred fifty-five".