256682011 has 2 divisors, whose sum is σ = 256682012. Its totient is φ = 256682010.

The previous prime is 256682009. The next prime is 256682033. The reversal of 256682011 is 110286652.

256682011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 256682011 - 2¹ = 256682009 is a prime.

Together with 256682009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (256682051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128341005 + 128341006.

It is an arithmetic number, because the mean of its divisors is an integer number (128341006).

Almost surely, 2^256682011 is an apocalyptic number.

256682011 is a deficient number, since it is larger than the sum of its proper divisors (1).

256682011 is an equidigital number, since it uses as much as digits as its factorization.

256682011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 256682011 is about 16021.2986677111. The cubic root of 256682011 is about 635.5237879697.

The spelling of 256682011 in words is "two hundred fifty-six million, six hundred eighty-two thousand, eleven".