256253047111 has 2 divisors, whose sum is σ = 256253047112. Its totient is φ = 256253047110.

The previous prime is 256253047027. The next prime is 256253047129. The reversal of 256253047111 is 111740352652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256253047111 - 2²⁷ = 256118829383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256253047411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128126523555 + 128126523556.

It is an arithmetic number, because the mean of its divisors is an integer number (128126523556).

Almost surely, 2^256253047111 is an apocalyptic number.

256253047111 is a deficient number, since it is larger than the sum of its proper divisors (1).

256253047111 is an equidigital number, since it uses as much as digits as its factorization.

256253047111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 37.

Adding to 256253047111 its reverse (111740352652), we get a palindrome (367993399763).

The spelling of 256253047111 in words is "two hundred fifty-six billion, two hundred fifty-three million, forty-seven thousand, one hundred eleven".