25825279 has 2 divisors, whose sum is σ = 25825280. Its totient is φ = 25825278.

The previous prime is 25825277. The next prime is 25825309. The reversal of 25825279 is 97252852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25825279 - 2¹ = 25825277 is a prime.

Together with 25825277, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25825277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12912639 + 12912640.

It is an arithmetic number, because the mean of its divisors is an integer number (12912640).

Almost surely, 2^25825279 is an apocalyptic number.

25825279 is a deficient number, since it is larger than the sum of its proper divisors (1).

25825279 is an equidigital number, since it uses as much as digits as its factorization.

25825279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 40.

The square root of 25825279 is about 5081.8578295737. The cubic root of 25825279 is about 295.5845118698.

The spelling of 25825279 in words is "twenty-five million, eight hundred twenty-five thousand, two hundred seventy-nine".