256053313 has 2 divisors, whose sum is σ = 256053314. Its totient is φ = 256053312.

The previous prime is 256053289. The next prime is 256053349. The reversal of 256053313 is 313350652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248913729 + 7139584 = 15777^2 + 2672^2 .

It is a cyclic number.

It is not a de Polignac number, because 256053313 - 2¹⁷ = 255922241 is a prime.

It is not a weakly prime, because it can be changed into another prime (256053013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128026656 + 128026657.

It is an arithmetic number, because the mean of its divisors is an integer number (128026657).

Almost surely, 2^256053313 is an apocalyptic number.

It is an amenable number.

256053313 is a deficient number, since it is larger than the sum of its proper divisors (1).

256053313 is an equidigital number, since it uses as much as digits as its factorization.

256053313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 256053313 is about 16001.6659445197. The cubic root of 256053313 is about 635.0044953905.

The spelling of 256053313 in words is "two hundred fifty-six million, fifty-three thousand, three hundred thirteen".