22140624725 has 12 divisors (see below), whose sum is σ = 27480984036. Its totient is φ = 17695332480.

The previous prime is 22140624719. The next prime is 22140624763. The reversal of 22140624725 is 52742604122.

It can be written as a sum of positive squares in 6 ways, for example, as 1267876 + 22139356849 = 1126^2 + 148793^2 .

It is not a de Polignac number, because 22140624725 - 2⁶ = 22140624661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 402842 + ... + 454491.

It is an arithmetic number, because the mean of its divisors is an integer number (2290082003).

Almost surely, 2^22140624725 is an apocalyptic number.

22140624725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22140624725 is a deficient number, since it is larger than the sum of its proper divisors (5340359311).

22140624725 is a wasteful number, since it uses less digits than its factorization.

22140624725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858376 (or 858371 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The spelling of 22140624725 in words is "twenty-two billion, one hundred forty million, six hundred twenty-four thousand, seven hundred twenty-five".