256006675559 has 2 divisors, whose sum is σ = 256006675560. Its totient is φ = 256006675558.

The previous prime is 256006675481. The next prime is 256006675579. The reversal of 256006675559 is 955576600652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256006675559 - 2⁸ = 256006675303 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256006675579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128003337779 + 128003337780.

It is an arithmetic number, because the mean of its divisors is an integer number (128003337780).

Almost surely, 2^256006675559 is an apocalyptic number.

256006675559 is a deficient number, since it is larger than the sum of its proper divisors (1).

256006675559 is an equidigital number, since it uses as much as digits as its factorization.

256006675559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010000, while the sum is 56.

The spelling of 256006675559 in words is "two hundred fifty-six billion, six million, six hundred seventy-five thousand, five hundred fifty-nine".