25980717 has 8 divisors (see below), whose sum is σ = 39589696. Its totient is φ = 14846112.

The previous prime is 25980701. The next prime is 25980719. The reversal of 25980717 is 71708952.

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

It is not a de Polignac number, because 25980717 - 2⁴ = 25980701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25980719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618568 + ... + 618609.

It is an arithmetic number, because the mean of its divisors is an integer number (4948712).

Almost surely, 2^25980717 is an apocalyptic number.

It is an amenable number.

25980717 is a deficient number, since it is larger than the sum of its proper divisors (13608979).

25980717 is a wasteful number, since it uses less digits than its factorization.

25980717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237187.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 25980717 is about 5097.1283091560. The cubic root of 25980717 is about 296.1763505074.

The spelling of 25980717 in words is "twenty-five million, nine hundred eighty thousand, seven hundred seventeen".