256682051 has 2 divisors, whose sum is σ = 256682052. Its totient is φ = 256682050.

The previous prime is 256682033. The next prime is 256682057. The reversal of 256682051 is 150286652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256682051 - 2¹⁸ = 256419907 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (256682057) 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, 128341025 + 128341026.

It is an arithmetic number, because the mean of its divisors is an integer number (128341026).

Almost surely, 2^256682051 is an apocalyptic number.

256682051 is a deficient number, since it is larger than the sum of its proper divisors (1).

256682051 is an equidigital number, since it uses as much as digits as its factorization.

256682051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 256682051 is about 16021.2999160493. The cubic root of 256682051 is about 635.5238209819.

The spelling of 256682051 in words is "two hundred fifty-six million, six hundred eighty-two thousand, fifty-one".