25231263 has 4 divisors (see below), whose sum is σ = 33641688. Its totient is φ = 16820840.

The previous prime is 25231249. The next prime is 25231279. The reversal of 25231263 is 36213252.

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 25231263 - 2⁵ = 25231231 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25231223) 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, 4205208 + ... + 4205213.

It is an arithmetic number, because the mean of its divisors is an integer number (8410422).

Almost surely, 2^25231263 is an apocalyptic number.

25231263 is a deficient number, since it is larger than the sum of its proper divisors (8410425).

25231263 is an equidigital number, since it uses as much as digits as its factorization.

25231263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8410424.

The product of its digits is 2160, while the sum is 24.

The square root of 25231263 is about 5023.0730633747. The cubic root of 25231263 is about 293.3006306805.

The spelling of 25231263 in words is "twenty-five million, two hundred thirty-one thousand, two hundred sixty-three".