25115459 has 2 divisors, whose sum is σ = 25115460. Its totient is φ = 25115458.

The previous prime is 25115429. The next prime is 25115509. The reversal of 25115459 is 95451152.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25115459 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25115429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12557729 + 12557730.

It is an arithmetic number, because the mean of its divisors is an integer number (12557730).

Almost surely, 2^25115459 is an apocalyptic number.

25115459 is a deficient number, since it is larger than the sum of its proper divisors (1).

25115459 is an equidigital number, since it uses as much as digits as its factorization.

25115459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 32.

The square root of 25115459 is about 5011.5325999139. The cubic root of 25115459 is about 292.8512215114.

The spelling of 25115459 in words is "twenty-five million, one hundred fifteen thousand, four hundred fifty-nine".