255356009 has 2 divisors, whose sum is σ = 255356010. Its totient is φ = 255356008.

The previous prime is 255355999. The next prime is 255356039. The reversal of 255356009 is 900653552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160098409 + 95257600 = 12653^2 + 9760^2 .

It is a cyclic number.

It is not a de Polignac number, because 255356009 - 2⁴ = 255355993 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 255356009.

It is not a weakly prime, because it can be changed into another prime (255356039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127678004 + 127678005.

It is an arithmetic number, because the mean of its divisors is an integer number (127678005).

Almost surely, 2^255356009 is an apocalyptic number.

It is an amenable number.

255356009 is a deficient number, since it is larger than the sum of its proper divisors (1).

255356009 is an equidigital number, since it uses as much as digits as its factorization.

255356009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 255356009 is about 15979.8626089213. The cubic root of 255356009 is about 634.4275403724.

The spelling of 255356009 in words is "two hundred fifty-five million, three hundred fifty-six thousand, nine".