25984971 has 12 divisors (see below), whose sum is σ = 37766248. Its totient is φ = 17216064.

The previous prime is 25984969. The next prime is 25984991. The reversal of 25984971 is 17948952.

It is not a de Polignac number, because 25984971 - 2¹ = 25984969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25984901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7390 + ... + 10323.

Almost surely, 2^25984971 is an apocalyptic number.

25984971 is a deficient number, since it is larger than the sum of its proper divisors (11781277).

25984971 is a wasteful number, since it uses less digits than its factorization.

25984971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17882 (or 17879 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 25984971 is about 5097.5455858678. The cubic root of 25984971 is about 296.1925146165.

It can be divided in two parts, 2598 and 4971, that added together give a square (7569 = 87²).

The spelling of 25984971 in words is "twenty-five million, nine hundred eighty-four thousand, nine hundred seventy-one".