22204025425 has 6 divisors (see below), whose sum is σ = 27532991558. Its totient is φ = 17763220320.

The previous prime is 22204025399. The next prime is 22204025447. The reversal of 22204025425 is 52452040222.

It can be written as a sum of positive squares in 3 ways, for example, as 2363612689 + 19840412736 = 48617^2 + 140856^2 .

It is not a de Polignac number, because 22204025425 - 2⁷ = 22204025297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22204025393 and 22204025402.

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 5 ways as a sum of consecutive naturals, for example, 444080484 + ... + 444080533.

Almost surely, 2^22204025425 is an apocalyptic number.

22204025425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22204025425 is a deficient number, since it is larger than the sum of its proper divisors (5328966133).

22204025425 is an equidigital number, since it uses as much as digits as its factorization.

22204025425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888161027 (or 888161022 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

Adding to 22204025425 its reverse (52452040222), we get a palindrome (74656065647).

The spelling of 22204025425 in words is "twenty-two billion, two hundred four million, twenty-five thousand, four hundred twenty-five".