22555525320 has 48 divisors (see below), whose sum is σ = 73305458460. Its totient is φ = 6014806656.

The previous prime is 22555525303. The next prime is 22555525331. The reversal of 22555525320 is 2352555522.

22555525320 is a `hidden beast` number, since 2 + 2 + 55 + 552 + 53 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19271547684 + 3283977636 = 138822^2 + 57306^2 .

It is a super-2 number, since 2×22555525320² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31326759 + ... + 31327478.

Almost surely, 2^22555525320 is an apocalyptic number.

22555525320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22555525320 is an abundant number, since it is smaller than the sum of its proper divisors (50749933140).

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

22555525320 is a wasteful number, since it uses less digits than its factorization.

22555525320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62654254 (or 62654247 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 36.

The spelling of 22555525320 in words is "twenty-two billion, five hundred fifty-five million, five hundred twenty-five thousand, three hundred twenty".