25422855 has 16 divisors (see below), whose sum is σ = 42817920. Its totient is φ = 12845088.

The previous prime is 25422851. The next prime is 25422857. The reversal of 25422855 is 55822452.

It is a happy number.

It is not a de Polignac number, because 25422855 - 2² = 25422851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25422851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44317 + ... + 44886.

It is an arithmetic number, because the mean of its divisors is an integer number (2676120).

Almost surely, 2^25422855 is an apocalyptic number.

25422855 is a deficient number, since it is larger than the sum of its proper divisors (17395065).

25422855 is a wasteful number, since it uses less digits than its factorization.

25422855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89230.

The product of its digits is 32000, while the sum is 33.

The square root of 25422855 is about 5042.1081900332. The cubic root of 25422855 is about 294.0411460761.

The spelling of 25422855 in words is "twenty-five million, four hundred twenty-two thousand, eight hundred fifty-five".