22555056500 has 24 divisors (see below), whose sum is σ = 49260244488. Its totient is φ = 9022022400.

The previous prime is 22555056497. The next prime is 22555056553. The reversal of 22555056500 is 565055522.

It can be written as a sum of positive squares in 4 ways, for example, as 8832784 + 22546223716 = 2972^2 + 150154^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22554557 + ... + 22555556.

It is an arithmetic number, because the mean of its divisors is an integer number (2052510187).

Almost surely, 2^22555056500 is an apocalyptic number.

22555056500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22555056500 is an abundant number, since it is smaller than the sum of its proper divisors (26705187988).

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

22555056500 is a wasteful number, since it uses less digits than its factorization.

22555056500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45110132 (or 45110120 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 35.

The spelling of 22555056500 in words is "twenty-two billion, five hundred fifty-five million, fifty-six thousand, five hundred".