25827239 has 2 divisors, whose sum is σ = 25827240. Its totient is φ = 25827238.

The previous prime is 25827163. The next prime is 25827259. The reversal of 25827239 is 93272852.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25827239 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25827259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12913619 + 12913620.

It is an arithmetic number, because the mean of its divisors is an integer number (12913620).

Almost surely, 2^25827239 is an apocalyptic number.

25827239 is a deficient number, since it is larger than the sum of its proper divisors (1).

25827239 is an equidigital number, since it uses as much as digits as its factorization.

25827239 is an odious number, because the sum of its binary digits is odd.

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

The square root of 25827239 is about 5082.0506687754. The cubic root of 25827239 is about 295.5919894397.

The spelling of 25827239 in words is "twenty-five million, eight hundred twenty-seven thousand, two hundred thirty-nine".