22125030525 has 60 divisors (see below), whose sum is σ = 44135811412. Its totient is φ = 10892309760.

The previous prime is 22125030497. The next prime is 22125030589. The reversal of 22125030525 is 52503052122.

It can be written as a sum of positive squares in 6 ways, for example, as 5389468569 + 16735561956 = 73413^2 + 129366^2 .

It is not a de Polignac number, because 22125030525 - 2⁵ = 22125030493 is a prime.

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

It is a Duffinian number.

22125030525 is a modest number, since divided by 30525 gives 22125 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 393904 + ... + 446553.

Almost surely, 2^22125030525 is an apocalyptic number.

22125030525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22125030525 is a deficient number, since it is larger than the sum of its proper divisors (22010780887).

22125030525 is a wasteful number, since it uses less digits than its factorization.

22125030525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840492 (or 840478 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 22125030525 its reverse (52503052122), we get a palindrome (74628082647).

The spelling of 22125030525 in words is "twenty-two billion, one hundred twenty-five million, thirty thousand, five hundred twenty-five".