22725100 has 18 divisors (see below), whose sum is σ = 49313684. Its totient is φ = 9090000.

The previous prime is 22725097. The next prime is 22725103. The reversal of 22725100 is 152722.

It is an interprime number because it is at equal distance from previous prime (22725097) and next prime (22725103).

It is not an unprimeable number, because it can be changed into a prime (22725103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113526 + ... + 113725.

Almost surely, 2^22725100 is an apocalyptic number.

22725100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22725100 is an abundant number, since it is smaller than the sum of its proper divisors (26588584).

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

22725100 is a wasteful number, since it uses less digits than its factorization.

22725100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227265 (or 227258 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 22725100 is about 4767.0850632226. The cubic root of 22725100 is about 283.2491406901.

Adding to 22725100 its reverse (152722), we get a palindrome (22877822).

The spelling of 22725100 in words is "twenty-two million, seven hundred twenty-five thousand, one hundred".