255208643 has 2 divisors, whose sum is σ = 255208644. Its totient is φ = 255208642.

The previous prime is 255208553. The next prime is 255208651. The reversal of 255208643 is 346802552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255208643 - 2¹⁰ = 255207619 is a prime.

It is not a weakly prime, because it can be changed into another prime (255208673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127604321 + 127604322.

It is an arithmetic number, because the mean of its divisors is an integer number (127604322).

Almost surely, 2^255208643 is an apocalyptic number.

255208643 is a deficient number, since it is larger than the sum of its proper divisors (1).

255208643 is an equidigital number, since it uses as much as digits as its factorization.

255208643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 255208643 is about 15975.2509526455. The cubic root of 255208643 is about 634.3054741376.

The spelling of 255208643 in words is "two hundred fifty-five million, two hundred eight thousand, six hundred forty-three".