22502625740 has 72 divisors (see below), whose sum is σ = 55024960032. Its totient is φ = 7707571200.

The previous prime is 22502625727. The next prime is 22502625751. The reversal of 22502625740 is 4752620522.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 22502625740.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1030940 + ... + 1052540.

It is an arithmetic number, because the mean of its divisors is an integer number (764235556).

Almost surely, 2^22502625740 is an apocalyptic number.

22502625740 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 22502625740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27512480016).

22502625740 is an abundant number, since it is smaller than the sum of its proper divisors (32522334292).

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

22502625740 is a wasteful number, since it uses less digits than its factorization.

22502625740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22687 (or 22678 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

The spelling of 22502625740 in words is "twenty-two billion, five hundred two million, six hundred twenty-five thousand, seven hundred forty".