25980695 has 32 divisors (see below), whose sum is σ = 35851200. Its totient is φ = 17915904.

The previous prime is 25980679. The next prime is 25980701. The reversal of 25980695 is 59608952.

It is a cyclic number.

It is not a de Polignac number, because 25980695 - 2⁴ = 25980679 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134519 + ... + 134711.

It is an arithmetic number, because the mean of its divisors is an integer number (1120350).

Almost surely, 2^25980695 is an apocalyptic number.

25980695 is a deficient number, since it is larger than the sum of its proper divisors (9870505).

25980695 is a wasteful number, since it uses less digits than its factorization.

25980695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339.

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 25980695 is about 5097.1261510777. The cubic root of 25980695 is about 296.1762669084.

The spelling of 25980695 in words is "twenty-five million, nine hundred eighty thousand, six hundred ninety-five".