22510320125 has 8 divisors (see below), whose sum is σ = 28092879672. Its totient is φ = 18008256000.

The previous prime is 22510320121. The next prime is 22510320127. The reversal of 22510320125 is 52102301522.

It can be written as a sum of positive squares in 4 ways, for example, as 75672601 + 22434647524 = 8699^2 + 149782^2 .

It is not a de Polignac number, because 22510320125 - 2² = 22510320121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22510320125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22510320121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90041156 + ... + 90041405.

It is an arithmetic number, because the mean of its divisors is an integer number (3511609959).

Almost surely, 2^22510320125 is an apocalyptic number.

22510320125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22510320125 is a deficient number, since it is larger than the sum of its proper divisors (5582559547).

22510320125 is an equidigital number, since it uses as much as digits as its factorization.

22510320125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180082576 (or 180082566 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 22510320125 its reverse (52102301522), we get a palindrome (74612621647).

The spelling of 22510320125 in words is "twenty-two billion, five hundred ten million, three hundred twenty thousand, one hundred twenty-five".