25000279 has 2 divisors, whose sum is σ = 25000280. Its totient is φ = 25000278.

The previous prime is 25000277. The next prime is 25000303. The reversal of 25000279 is 97200052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25000279 - 2¹ = 25000277 is a prime.

Together with 25000277, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25000273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12500139 + 12500140.

It is an arithmetic number, because the mean of its divisors is an integer number (12500140).

Almost surely, 2^25000279 is an apocalyptic number.

25000279 is a deficient number, since it is larger than the sum of its proper divisors (1).

25000279 is an equidigital number, since it uses as much as digits as its factorization.

25000279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 25000279 is about 5000.0278999222. The cubic root of 25000279 is about 292.4028615518.

The spelling of 25000279 in words is "twenty-five million, two hundred seventy-nine", and thus it is an aban number.