25952663 has 4 divisors (see below), whose sum is σ = 28312008. Its totient is φ = 23593320.

The previous prime is 25952627. The next prime is 25952677. The reversal of 25952663 is 36625952.

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 25952663 - 2⁶ = 25952599 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 (25952603) 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, 1179656 + ... + 1179677.

It is an arithmetic number, because the mean of its divisors is an integer number (7078002).

Almost surely, 2^25952663 is an apocalyptic number.

25952663 is a deficient number, since it is larger than the sum of its proper divisors (2359345).

25952663 is a wasteful number, since it uses less digits than its factorization.

25952663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359344.

The product of its digits is 97200, while the sum is 38.

The square root of 25952663 is about 5094.3756241565. The cubic root of 25952663 is about 296.0697082902.

Subtracting 25952663 from its reverse (36625952), we obtain a square (10673289 = 3267²).

The spelling of 25952663 in words is "twenty-five million, nine hundred fifty-two thousand, six hundred sixty-three".