22553255556 has 36 divisors (see below), whose sum is σ = 61394974732. Its totient is φ = 6939463104.

The previous prime is 22553255551. The next prime is 22553255573. The reversal of 22553255556 is 65555235522.

22553255556 is a `hidden beast` number, since 2 + 25 + 53 + 25 + 5 + 556 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1706516100 + 20846739456 = 41310^2 + 144384^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (22553255551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24094891 + ... + 24095826.

Almost surely, 2^22553255556 is an apocalyptic number.

22553255556 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

22553255556 is an abundant number, since it is smaller than the sum of its proper divisors (38841719176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22553255556 is a wasteful number, since it uses less digits than its factorization.

22553255556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48190740 (or 48190735 counting only the distinct ones).

The product of its digits is 2250000, while the sum is 45.

The spelling of 22553255556 in words is "twenty-two billion, five hundred fifty-three million, two hundred fifty-five thousand, five hundred fifty-six".