25823279 has 4 divisors (see below), whose sum is σ = 26656320. Its totient is φ = 24990240.

The previous prime is 25823269. The next prime is 25823309. The reversal of 25823279 is 97232852.

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 25823279 - 2⁸ = 25823023 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 (25823219) 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, 416474 + ... + 416535.

It is an arithmetic number, because the mean of its divisors is an integer number (6664080).

Almost surely, 2^25823279 is an apocalyptic number.

25823279 is a deficient number, since it is larger than the sum of its proper divisors (833041).

25823279 is an equidigital number, since it uses as much as digits as its factorization.

25823279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833040.

The product of its digits is 60480, while the sum is 38.

The square root of 25823279 is about 5081.6610473348. The cubic root of 25823279 is about 295.5768813064.

The spelling of 25823279 in words is "twenty-five million, eight hundred twenty-three thousand, two hundred seventy-nine".