255645833 has 2 divisors, whose sum is σ = 255645834. Its totient is φ = 255645832.

The previous prime is 255645823. The next prime is 255645877. The reversal of 255645833 is 338546552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 233111824 + 22534009 = 15268^2 + 4747^2 .

It is a cyclic number.

It is not a de Polignac number, because 255645833 - 2²⁰ = 254597257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255645823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127822916 + 127822917.

It is an arithmetic number, because the mean of its divisors is an integer number (127822917).

Almost surely, 2^255645833 is an apocalyptic number.

It is an amenable number.

255645833 is a deficient number, since it is larger than the sum of its proper divisors (1).

255645833 is an equidigital number, since it uses as much as digits as its factorization.

255645833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432000, while the sum is 41.

The square root of 255645833 is about 15988.9284506498. The cubic root of 255645833 is about 634.6674705105.

The spelling of 255645833 in words is "two hundred fifty-five million, six hundred forty-five thousand, eight hundred thirty-three".