255226289 has 2 divisors, whose sum is σ = 255226290. Its totient is φ = 255226288.

The previous prime is 255226273. The next prime is 255226313. The reversal of 255226289 is 982622552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248377600 + 6848689 = 15760^2 + 2617^2 .

It is a cyclic number.

It is not a de Polignac number, because 255226289 - 2⁴ = 255226273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255226789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127613144 + 127613145.

It is an arithmetic number, because the mean of its divisors is an integer number (127613145).

Almost surely, 2^255226289 is an apocalyptic number.

It is an amenable number.

255226289 is a deficient number, since it is larger than the sum of its proper divisors (1).

255226289 is an equidigital number, since it uses as much as digits as its factorization.

255226289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 41.

The square root of 255226289 is about 15975.8032348924. The cubic root of 255226289 is about 634.3200931520.

The spelling of 255226289 in words is "two hundred fifty-five million, two hundred twenty-six thousand, two hundred eighty-nine".