25872986 has 8 divisors (see below), whose sum is σ = 38841024. Its totient is φ = 12925980.

The previous prime is 25872949. The next prime is 25872989. The reversal of 25872986 is 68927852.

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

It is a super-2 number, since 2×25872986² = 1338822809112392, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25872986.

It is not an unprimeable number, because it can be changed into a prime (25872989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700 + ... + 7391.

It is an arithmetic number, because the mean of its divisors is an integer number (4855128).

Almost surely, 2^25872986 is an apocalyptic number.

25872986 is a deficient number, since it is larger than the sum of its proper divisors (12968038).

25872986 is a wasteful number, since it uses less digits than its factorization.

25872986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10516.

The product of its digits is 483840, while the sum is 47.

The square root of 25872986 is about 5086.5495180918. The cubic root of 25872986 is about 295.7664108535.

The spelling of 25872986 in words is "twenty-five million, eight hundred seventy-two thousand, nine hundred eighty-six".