22205271825 has 48 divisors (see below), whose sum is σ = 44500276800. Its totient is φ = 10766188800.

The previous prime is 22205271799. The next prime is 22205271859. The reversal of 22205271825 is 52817250222.

It is not a de Polignac number, because 22205271825 - 2²⁴ = 22188494609 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22205271825.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1487880 + ... + 1502729.

It is an arithmetic number, because the mean of its divisors is an integer number (927089100).

Almost surely, 2^22205271825 is an apocalyptic number.

22205271825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22205271825 is an abundant number, since it is smaller than the sum of its proper divisors (22295004975).

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

22205271825 is a wasteful number, since it uses less digits than its factorization.

22205271825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2990639 (or 2990628 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The spelling of 22205271825 in words is "twenty-two billion, two hundred five million, two hundred seventy-one thousand, eight hundred twenty-five".