256374553283 has 2 divisors, whose sum is σ = 256374553284. Its totient is φ = 256374553282.

The previous prime is 256374553217. The next prime is 256374553289. The reversal of 256374553283 is 382355473652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256374553283 - 2¹² = 256374549187 is a prime.

It is not a weakly prime, because it can be changed into another prime (256374553289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128187276641 + 128187276642.

It is an arithmetic number, because the mean of its divisors is an integer number (128187276642).

Almost surely, 2^256374553283 is an apocalyptic number.

256374553283 is a deficient number, since it is larger than the sum of its proper divisors (1).

256374553283 is an equidigital number, since it uses as much as digits as its factorization.

256374553283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144000, while the sum is 53.

The spelling of 256374553283 in words is "two hundred fifty-six billion, three hundred seventy-four million, five hundred fifty-three thousand, two hundred eighty-three".