25786459 has 2 divisors, whose sum is σ = 25786460. Its totient is φ = 25786458.

The previous prime is 25786429. The next prime is 25786483. The reversal of 25786459 is 95468752.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25786459 is a prime.

It is not a weakly prime, because it can be changed into another prime (25786429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12893229 + 12893230.

It is an arithmetic number, because the mean of its divisors is an integer number (12893230).

Almost surely, 2^25786459 is an apocalyptic number.

25786459 is a deficient number, since it is larger than the sum of its proper divisors (1).

25786459 is an equidigital number, since it uses as much as digits as its factorization.

25786459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 46.

The square root of 25786459 is about 5078.0369238516. The cubic root of 25786459 is about 295.4363321862.

The spelling of 25786459 in words is "twenty-five million, seven hundred eighty-six thousand, four hundred fifty-nine".