22005055525 has 6 divisors (see below), whose sum is σ = 27286268882. Its totient is φ = 17604044400.

The previous prime is 22005055507. The next prime is 22005055549. The reversal of 22005055525 is 52555050022.

It can be written as a sum of positive squares in 3 ways, for example, as 3867969249 + 18137086276 = 62193^2 + 134674^2 .

It is not a de Polignac number, because 22005055525 - 2⁹ = 22005055013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 440101086 + ... + 440101135.

Almost surely, 2^22005055525 is an apocalyptic number.

22005055525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22005055525 is a deficient number, since it is larger than the sum of its proper divisors (5281213357).

22005055525 is an equidigital number, since it uses as much as digits as its factorization.

22005055525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880202231 (or 880202226 counting only the distinct ones).

The product of its (nonzero) digits is 25000, while the sum is 31.

The spelling of 22005055525 in words is "twenty-two billion, five million, fifty-five thousand, five hundred twenty-five".