25917868 has 24 divisors (see below), whose sum is σ = 46872000. Its totient is φ = 12532608.

The previous prime is 25917839. The next prime is 25917869. The reversal of 25917868 is 86871952.

It is not an unprimeable number, because it can be changed into a prime (25917869) 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, 15958 + ... + 17506.

It is an arithmetic number, because the mean of its divisors is an integer number (1953000).

Almost surely, 2^25917868 is an apocalyptic number.

It is an amenable number.

25917868 is a deficient number, since it is larger than the sum of its proper divisors (20954132).

25917868 is a wasteful number, since it uses less digits than its factorization.

25917868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689 (or 1687 counting only the distinct ones).

The product of its digits is 241920, while the sum is 46.

The square root of 25917868 is about 5090.9594380627. The cubic root of 25917868 is about 295.9373345550.

The spelling of 25917868 in words is "twenty-five million, nine hundred seventeen thousand, eight hundred sixty-eight".