25994263 has 4 divisors (see below), whose sum is σ = 26004888. Its totient is φ = 25983640.

The previous prime is 25994257. The next prime is 25994291. The reversal of 25994263 is 36249952.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25994263 - 2¹⁷ = 25863191 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 (25994663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420 + ... + 7222.

It is an arithmetic number, because the mean of its divisors is an integer number (6501222).

Almost surely, 2^25994263 is an apocalyptic number.

25994263 is a deficient number, since it is larger than the sum of its proper divisors (10625).

25994263 is an equidigital number, since it uses as much as digits as its factorization.

25994263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10624.

The product of its digits is 116640, while the sum is 40.

The square root of 25994263 is about 5098.4569234230. The cubic root of 25994263 is about 296.2278156995.

The spelling of 25994263 in words is "twenty-five million, nine hundred ninety-four thousand, two hundred sixty-three".