25655422 has 24 divisors (see below), whose sum is σ = 42551208. Its totient is φ = 11532480.

The previous prime is 25655417. The next prime is 25655423. The reversal of 25655422 is 22455652.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25655423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43413 + ... + 43999.

It is an arithmetic number, because the mean of its divisors is an integer number (1772967).

Almost surely, 2^25655422 is an apocalyptic number.

25655422 is a deficient number, since it is larger than the sum of its proper divisors (16895786).

25655422 is a wasteful number, since it uses less digits than its factorization.

25655422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 643 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 25655422 is about 5065.1181624914. The cubic root of 25655422 is about 294.9350503378.

The spelling of 25655422 in words is "twenty-five million, six hundred fifty-five thousand, four hundred twenty-two".