25999982 has 16 divisors (see below), whose sum is σ = 40828320. Its totient is φ = 12394272.

The previous prime is 25999949. The next prime is 26000003. The reversal of 25999982 is 28999952.

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, 17168 + ... + 18620.

It is an arithmetic number, because the mean of its divisors is an integer number (2551770).

Almost surely, 2^25999982 is an apocalyptic number.

25999982 is a deficient number, since it is larger than the sum of its proper divisors (14828338).

25999982 is a wasteful number, since it uses less digits than its factorization.

25999982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1867.

The product of its digits is 1049760, while the sum is 53.

The square root of 25999982 is about 5099.0177485473. The cubic root of 25999982 is about 296.2495384754.

The spelling of 25999982 in words is "twenty-five million, nine hundred ninety-nine thousand, nine hundred eighty-two".