255814289 has 2 divisors, whose sum is σ = 255814290. Its totient is φ = 255814288.

The previous prime is 255814277. The next prime is 255814379. The reversal of 255814289 is 982418552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 255744064 + 70225 = 15992^2 + 265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255814289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255814219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127907144 + 127907145.

It is an arithmetic number, because the mean of its divisors is an integer number (127907145).

Almost surely, 2^255814289 is an apocalyptic number.

It is an amenable number.

255814289 is a deficient number, since it is larger than the sum of its proper divisors (1).

255814289 is an equidigital number, since it uses as much as digits as its factorization.

255814289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 230400, while the sum is 44.

The square root of 255814289 is about 15994.1954783603. The cubic root of 255814289 is about 634.8068431045.

The spelling of 255814289 in words is "two hundred fifty-five million, eight hundred fourteen thousand, two hundred eighty-nine".