256274411 has 2 divisors, whose sum is σ = 256274412. Its totient is φ = 256274410.

The previous prime is 256274401. The next prime is 256274449. The reversal of 256274411 is 114472652.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256274411 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (256274401) 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, 128137205 + 128137206.

It is an arithmetic number, because the mean of its divisors is an integer number (128137206).

Almost surely, 2^256274411 is an apocalyptic number.

256274411 is a deficient number, since it is larger than the sum of its proper divisors (1).

256274411 is an equidigital number, since it uses as much as digits as its factorization.

256274411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 32.

The square root of 256274411 is about 16008.5730469646. The cubic root of 256274411 is about 635.1872149332.

The spelling of 256274411 in words is "two hundred fifty-six million, two hundred seventy-four thousand, four hundred eleven".