22540042125 has 128 divisors (see below), whose sum is σ = 43239006720. Its totient is φ = 11722320000.

The previous prime is 22540042111. The next prime is 22540042139. The reversal of 22540042125 is 52124004522.

It is an interprime number because it is at equal distance from previous prime (22540042111) and next prime (22540042139).

It is not a de Polignac number, because 22540042125 - 2¹⁴ = 22540025741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11207370 + ... + 11209380.

It is an arithmetic number, because the mean of its divisors is an integer number (337804740).

Almost surely, 2^22540042125 is an apocalyptic number.

22540042125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22540042125 is a deficient number, since it is larger than the sum of its proper divisors (20698964595).

22540042125 is an frugal number, since it uses more digits than its factorization.

22540042125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088 (or 2060 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 22540042125 its reverse (52124004522), we get a palindrome (74664046647).

The spelling of 22540042125 in words is "twenty-two billion, five hundred forty million, forty-two thousand, one hundred twenty-five".