25986396 has 12 divisors (see below), whose sum is σ = 60634952. Its totient is φ = 8662128.

The previous prime is 25986379. The next prime is 25986403. The reversal of 25986396 is 69368952.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1082755 + ... + 1082778.

Almost surely, 2^25986396 is an apocalyptic number.

It is an amenable number.

25986396 is an abundant number, since it is smaller than the sum of its proper divisors (34648556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25986396 is a wasteful number, since it uses less digits than its factorization.

25986396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165540 (or 2165538 counting only the distinct ones).

The product of its digits is 699840, while the sum is 48.

The square root of 25986396 is about 5097.6853571008. The cubic root of 25986396 is about 296.1979288566.

The spelling of 25986396 in words is "twenty-five million, nine hundred eighty-six thousand, three hundred ninety-six".