25990862 has 4 divisors (see below), whose sum is σ = 38986296. Its totient is φ = 12995430.

The previous prime is 25990849. The next prime is 25990871. The reversal of 25990862 is 26809952.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6497714 + ... + 6497717.

It is an arithmetic number, because the mean of its divisors is an integer number (9746574).

Almost surely, 2^25990862 is an apocalyptic number.

25990862 is a deficient number, since it is larger than the sum of its proper divisors (12995434).

25990862 is a wasteful number, since it uses less digits than its factorization.

25990862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12995433.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 25990862 is about 5098.1233802253. The cubic root of 25990862 is about 296.2148959930.

The spelling of 25990862 in words is "twenty-five million, nine hundred ninety thousand, eight hundred sixty-two".