25983663 has 8 divisors (see below), whose sum is σ = 34878000. Its totient is φ = 17205888.

The previous prime is 25983647. The next prime is 25983677. The reversal of 25983663 is 36638952.

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

It is not a de Polignac number, because 25983663 - 2⁴ = 25983647 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25983613) 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, 28618 + ... + 29511.

It is an arithmetic number, because the mean of its divisors is an integer number (4359750).

Almost surely, 2^25983663 is an apocalyptic number.

25983663 is a deficient number, since it is larger than the sum of its proper divisors (8894337).

25983663 is a wasteful number, since it uses less digits than its factorization.

25983663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58281.

The product of its digits is 233280, while the sum is 42.

The square root of 25983663 is about 5097.4172872152. The cubic root of 25983663 is about 296.1875447397.

The spelling of 25983663 in words is "twenty-five million, nine hundred eighty-three thousand, six hundred sixty-three".