22890944525 has 6 divisors (see below), whose sum is σ = 28384771242. Its totient is φ = 18312755600.

The previous prime is 22890944519. The next prime is 22890944597. The reversal of 22890944525 is 52544909822.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 25270729 + 22865673796 = 5027^2 + 151214^2 .

It is not a de Polignac number, because 22890944525 - 2²⁰ = 22889895949 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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 457818866 + ... + 457818915.

It is an arithmetic number, because the mean of its divisors is an integer number (4730795207).

Almost surely, 2^22890944525 is an apocalyptic number.

22890944525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22890944525 is a deficient number, since it is larger than the sum of its proper divisors (5493826717).

22890944525 is an equidigital number, since it uses as much as digits as its factorization.

22890944525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915637791 (or 915637786 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 22890944525 in words is "twenty-two billion, eight hundred ninety million, nine hundred forty-four thousand, five hundred twenty-five".