256376311 has 2 divisors, whose sum is σ = 256376312. Its totient is φ = 256376310.

The previous prime is 256376287. The next prime is 256376347. The reversal of 256376311 is 113673652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 256376311 - 2⁹ = 256375799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256376411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128188155 + 128188156.

It is an arithmetic number, because the mean of its divisors is an integer number (128188156).

Almost surely, 2^256376311 is an apocalyptic number.

256376311 is a deficient number, since it is larger than the sum of its proper divisors (1).

256376311 is an equidigital number, since it uses as much as digits as its factorization.

256376311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 34.

The square root of 256376311 is about 16011.7554003301. The cubic root of 256376311 is about 635.2713916302.

The spelling of 256376311 in words is "two hundred fifty-six million, three hundred seventy-six thousand, three hundred eleven".