25680394 has 8 divisors (see below), whose sum is σ = 38551680. Its totient is φ = 12829836.

The previous prime is 25680379. The next prime is 25680401. The reversal of 25680394 is 49308652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1584 + ... + 7339.

It is an arithmetic number, because the mean of its divisors is an integer number (4818960).

Almost surely, 2^25680394 is an apocalyptic number.

25680394 is a deficient number, since it is larger than the sum of its proper divisors (12871286).

25680394 is a wasteful number, since it uses less digits than its factorization.

25680394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10364.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 25680394 is about 5067.5826584280. The cubic root of 25680394 is about 295.0307121142.

The spelling of 25680394 in words is "twenty-five million, six hundred eighty thousand, three hundred ninety-four".