256056233 has 2 divisors, whose sum is σ = 256056234. Its totient is φ = 256056232.

The previous prime is 256056139. The next prime is 256056277. The reversal of 256056233 is 332650652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133356304 + 122699929 = 11548^2 + 11077^2 .

It is a cyclic number.

It is not a de Polignac number, because 256056233 - 2¹⁶ = 255990697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 256056233.

It is not a weakly prime, because it can be changed into another prime (256026233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128028116 + 128028117.

It is an arithmetic number, because the mean of its divisors is an integer number (128028117).

Almost surely, 2^256056233 is an apocalyptic number.

It is an amenable number.

256056233 is a deficient number, since it is larger than the sum of its proper divisors (1).

256056233 is an equidigital number, since it uses as much as digits as its factorization.

256056233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 256056233 is about 16001.7571847594. The cubic root of 256056233 is about 635.0069092186.

The spelling of 256056233 in words is "two hundred fifty-six million, fifty-six thousand, two hundred thirty-three".