256222290853 has 2 divisors, whose sum is σ = 256222290854. Its totient is φ = 256222290852.

The previous prime is 256222290829. The next prime is 256222290967. The reversal of 256222290853 is 358092222652.

256222290853 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 can be written as a sum of positive squares in only one way, i.e., 252710306209 + 3511984644 = 502703^2 + 59262^2 .

It is a cyclic number.

It is not a de Polignac number, because 256222290853 - 2²⁵ = 256188736421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256222270853) 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, 128111145426 + 128111145427.

It is an arithmetic number, because the mean of its divisors is an integer number (128111145427).

Almost surely, 2^256222290853 is an apocalyptic number.

It is an amenable number.

256222290853 is a deficient number, since it is larger than the sum of its proper divisors (1).

256222290853 is an equidigital number, since it uses as much as digits as its factorization.

256222290853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 256222290853 in words is "two hundred fifty-six billion, two hundred twenty-two million, two hundred ninety thousand, eight hundred fifty-three".