256882459 has 2 divisors, whose sum is σ = 256882460. Its totient is φ = 256882458.

The previous prime is 256882441. The next prime is 256882463. The reversal of 256882459 is 954288652.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256882459 - 2¹⁷ = 256751387 is a prime.

It is not a weakly prime, because it can be changed into another prime (256882429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128441229 + 128441230.

It is an arithmetic number, because the mean of its divisors is an integer number (128441230).

Almost surely, 2^256882459 is an apocalyptic number.

256882459 is a deficient number, since it is larger than the sum of its proper divisors (1).

256882459 is an equidigital number, since it uses as much as digits as its factorization.

256882459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1382400, while the sum is 49.

The square root of 256882459 is about 16027.5531195501. The cubic root of 256882459 is about 635.6891759087.

The spelling of 256882459 in words is "two hundred fifty-six million, eight hundred eighty-two thousand, four hundred fifty-nine".