25655142422 has 64 divisors (see below), whose sum is σ = 47739041280. Its totient is φ = 10069069824.

The previous prime is 25655142419. The next prime is 25655142431. The reversal of 25655142422 is 22424155652.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 22250198 + ... + 22251350.

It is an arithmetic number, because the mean of its divisors is an integer number (745922520).

Almost surely, 2^25655142422 is an apocalyptic number.

25655142422 is a deficient number, since it is larger than the sum of its proper divisors (22083898858).

25655142422 is a wasteful number, since it uses less digits than its factorization.

25655142422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037.

The product of its digits is 192000, while the sum is 38.

The spelling of 25655142422 in words is "twenty-five billion, six hundred fifty-five million, one hundred forty-two thousand, four hundred twenty-two".