25311379 has 2 divisors, whose sum is σ = 25311380. Its totient is φ = 25311378.

The previous prime is 25311373. The next prime is 25311389. The reversal of 25311379 is 97311352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25311379 - 2⁵ = 25311347 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25311379.

It is not a weakly prime, because it can be changed into another prime (25311373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12655689 + 12655690.

It is an arithmetic number, because the mean of its divisors is an integer number (12655690).

Almost surely, 2^25311379 is an apocalyptic number.

25311379 is a deficient number, since it is larger than the sum of its proper divisors (1).

25311379 is an equidigital number, since it uses as much as digits as its factorization.

25311379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 31.

The square root of 25311379 is about 5031.0415422654. The cubic root of 25311379 is about 293.6107386369.

The spelling of 25311379 in words is "twenty-five million, three hundred eleven thousand, three hundred seventy-nine".