25310279 has 2 divisors, whose sum is σ = 25310280. Its totient is φ = 25310278.

The previous prime is 25310239. The next prime is 25310287. The reversal of 25310279 is 97201352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25310279 - 2⁸ = 25310023 is a prime.

It is a super-2 number, since 2×25310279² = 1281220446115682, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25310239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12655139 + 12655140.

It is an arithmetic number, because the mean of its divisors is an integer number (12655140).

Almost surely, 2^25310279 is an apocalyptic number.

25310279 is a deficient number, since it is larger than the sum of its proper divisors (1).

25310279 is an equidigital number, since it uses as much as digits as its factorization.

25310279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 25310279 is about 5030.9322197780. The cubic root of 25310279 is about 293.6064852602.

The spelling of 25310279 in words is "twenty-five million, three hundred ten thousand, two hundred seventy-nine".