25856263 has 8 divisors (see below), whose sum is σ = 26804736. Its totient is φ = 24915000.

The previous prime is 25856261. The next prime is 25856273. The reversal of 25856263 is 36265852.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 25856263 - 2¹ = 25856261 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 (25856261) 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, 6120 + ... + 9442.

It is an arithmetic number, because the mean of its divisors is an integer number (3350592).

Almost surely, 2^25856263 is an apocalyptic number.

25856263 is a deficient number, since it is larger than the sum of its proper divisors (948473).

25856263 is a wasteful number, since it uses less digits than its factorization.

25856263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3605.

The product of its digits is 86400, while the sum is 37.

The square root of 25856263 is about 5084.9054071831. The cubic root of 25856263 is about 295.7026742634.

The spelling of 25856263 in words is "twenty-five million, eight hundred fifty-six thousand, two hundred sixty-three".