256222727 has 2 divisors, whose sum is σ = 256222728. Its totient is φ = 256222726.

The previous prime is 256222717. The next prime is 256222873. The reversal of 256222727 is 727222652.

256222727 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 256222727 - 2¹⁰ = 256221703 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256222717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128111363 + 128111364.

It is an arithmetic number, because the mean of its divisors is an integer number (128111364).

Almost surely, 2^256222727 is an apocalyptic number.

256222727 is a deficient number, since it is larger than the sum of its proper divisors (1).

256222727 is an equidigital number, since it uses as much as digits as its factorization.

256222727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 35.

The square root of 256222727 is about 16006.9587055130. The cubic root of 256222727 is about 635.1445117190.

The spelling of 256222727 in words is "two hundred fifty-six million, two hundred twenty-two thousand, seven hundred twenty-seven".