25430459 has 2 divisors, whose sum is σ = 25430460. Its totient is φ = 25430458.

The previous prime is 25430443. The next prime is 25430491. The reversal of 25430459 is 95403452.

It is a happy number.

It is an a-pointer prime, because the next prime (25430491) can be obtained adding 25430459 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25430459 - 2⁴ = 25430443 is a prime.

It is not a weakly prime, because it can be changed into another prime (25430429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12715229 + 12715230.

It is an arithmetic number, because the mean of its divisors is an integer number (12715230).

Almost surely, 2^25430459 is an apocalyptic number.

25430459 is a deficient number, since it is larger than the sum of its proper divisors (1).

25430459 is an equidigital number, since it uses as much as digits as its factorization.

25430459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 25430459 is about 5042.8621833241. The cubic root of 25430459 is about 294.0704591488.

The spelling of 25430459 in words is "twenty-five million, four hundred thirty thousand, four hundred fifty-nine".