25998422 has 16 divisors (see below), whose sum is σ = 41549760. Its totient is φ = 12165192.

The previous prime is 25998407. The next prime is 25998431. The reversal of 25998422 is 22489952.

It is a self number, because there is not a number n which added to its sum of digits gives 25998422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 968 + ... + 7275.

It is an arithmetic number, because the mean of its divisors is an integer number (2596860).

Almost surely, 2^25998422 is an apocalyptic number.

25998422 is a deficient number, since it is larger than the sum of its proper divisors (15551338).

25998422 is a wasteful number, since it uses less digits than its factorization.

25998422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8347.

The product of its digits is 103680, while the sum is 41.

The square root of 25998422 is about 5098.8647756143. The cubic root of 25998422 is about 296.2436133621.

The spelling of 25998422 in words is "twenty-five million, nine hundred ninety-eight thousand, four hundred twenty-two".