255686033 has 2 divisors, whose sum is σ = 255686034. Its totient is φ = 255686032.

The previous prime is 255686029. The next prime is 255686087. The reversal of 255686033 is 330686552.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156325009 + 99361024 = 12503^2 + 9968^2 .

It is a cyclic number.

It is not a de Polignac number, because 255686033 - 2² = 255686029 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (255683033) 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, 127843016 + 127843017.

It is an arithmetic number, because the mean of its divisors is an integer number (127843017).

Almost surely, 2^255686033 is an apocalyptic number.

It is an amenable number.

255686033 is a deficient number, since it is larger than the sum of its proper divisors (1).

255686033 is an equidigital number, since it uses as much as digits as its factorization.

255686033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 255686033 is about 15990.1855211251. The cubic root of 255686033 is about 634.7007356659.

The spelling of 255686033 in words is "two hundred fifty-five million, six hundred eighty-six thousand, thirty-three".