22540225880 has 64 divisors (see below), whose sum is σ = 53843343840. Its totient is φ = 8462886912.

The previous prime is 22540225871. The next prime is 22540225913. The reversal of 22540225880 is 8852204522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209207 + ... + 298073.

Almost surely, 2^22540225880 is an apocalyptic number.

22540225880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22540225880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26921671920).

22540225880 is an abundant number, since it is smaller than the sum of its proper divisors (31303117960).

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

22540225880 is a wasteful number, since it uses less digits than its factorization.

22540225880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89268 (or 89264 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 38.

The spelling of 22540225880 in words is "twenty-two billion, five hundred forty million, two hundred twenty-five thousand, eight hundred eighty".