256304051 has 2 divisors, whose sum is σ = 256304052. Its totient is φ = 256304050.

The previous prime is 256304033. The next prime is 256304057. The reversal of 256304051 is 150403652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256304051 - 2⁶ = 256303987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 256304051.

It is not a weakly prime, because it can be changed into another prime (256304057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128152025 + 128152026.

It is an arithmetic number, because the mean of its divisors is an integer number (128152026).

Almost surely, 2^256304051 is an apocalyptic number.

256304051 is a deficient number, since it is larger than the sum of its proper divisors (1).

256304051 is an equidigital number, since it uses as much as digits as its factorization.

256304051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 256304051 is about 16009.4987741653. The cubic root of 256304051 is about 635.2117019966.

The spelling of 256304051 in words is "two hundred fifty-six million, three hundred four thousand, fifty-one".