22591903425 has 48 divisors (see below), whose sum is σ = 45971640960. Its totient is φ = 9533283840.

The previous prime is 22591903363. The next prime is 22591903427. The reversal of 22591903425 is 52430919522.

It is not a de Polignac number, because 22591903425 - 2⁶ = 22591903361 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22591903427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1648260 + ... + 1661909.

It is an arithmetic number, because the mean of its divisors is an integer number (957742520).

Almost surely, 2^22591903425 is an apocalyptic number.

22591903425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22591903425 is an abundant number, since it is smaller than the sum of its proper divisors (23379737535).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22591903425 is a wasteful number, since it uses less digits than its factorization.

22591903425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310202 (or 3310197 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 22591903425 in words is "twenty-two billion, five hundred ninety-one million, nine hundred three thousand, four hundred twenty-five".