22525501300 has 72 divisors (see below), whose sum is σ = 51491148800. Its totient is φ = 8529649920.

The previous prime is 22525501291. The next prime is 22525501309. The reversal of 22525501300 is 310552522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22525501291) and next prime (22525501309).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22525501309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3156136 + ... + 3163264.

Almost surely, 2^22525501300 is an apocalyptic number.

22525501300 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 22525501300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25745574400).

22525501300 is an abundant number, since it is smaller than the sum of its proper divisors (28965647500).

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

22525501300 is a wasteful number, since it uses less digits than its factorization.

22525501300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8825 (or 8818 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 22525501300 in words is "twenty-two billion, five hundred twenty-five million, five hundred one thousand, three hundred".