25795663 has 4 divisors (see below), whose sum is σ = 25906608. Its totient is φ = 25684720.

The previous prime is 25795661. The next prime is 25795687. The reversal of 25795663 is 36659752.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25795663 - 2¹ = 25795661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25795661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55123 + ... + 55588.

It is an arithmetic number, because the mean of its divisors is an integer number (6476652).

Almost surely, 2^25795663 is an apocalyptic number.

25795663 is a deficient number, since it is larger than the sum of its proper divisors (110945).

25795663 is a wasteful number, since it uses less digits than its factorization.

25795663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110944.

The product of its digits is 340200, while the sum is 43.

The square root of 25795663 is about 5078.9430987165. The cubic root of 25795663 is about 295.4714781847.

The spelling of 25795663 in words is "twenty-five million, seven hundred ninety-five thousand, six hundred sixty-three".