25222770684 has 96 divisors (see below), whose sum is σ = 68608942080. Its totient is φ = 8002929600.

The previous prime is 25222770659. The next prime is 25222770737. The reversal of 25222770684 is 48607722252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142477 + ... + 265979.

It is an arithmetic number, because the mean of its divisors is an integer number (714676480).

Almost surely, 2^25222770684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25222770684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34304471040).

25222770684 is an abundant number, since it is smaller than the sum of its proper divisors (43386171396).

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

25222770684 is a wasteful number, since it uses less digits than its factorization.

25222770684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123608 (or 123600 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The spelling of 25222770684 in words is "twenty-five billion, two hundred twenty-two million, seven hundred seventy thousand, six hundred eighty-four".