22561625000 has 112 divisors (see below), whose sum is σ = 53202444000. Its totient is φ = 8969400000.

The previous prime is 22561624963. The next prime is 22561625003. The reversal of 22561625000 is 52616522.

It is not an unprimeable number, because it can be changed into a prime (22561625003) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 24874547 + ... + 24875453.

Almost surely, 2^22561625000 is an apocalyptic number.

22561625000 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 22561625000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26601222000).

22561625000 is an abundant number, since it is smaller than the sum of its proper divisors (30640819000).

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

22561625000 is an frugal number, since it uses more digits than its factorization.

22561625000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142 (or 1113 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 22561625000 in words is "twenty-two billion, five hundred sixty-one million, six hundred twenty-five thousand".