255850849 has 2 divisors, whose sum is σ = 255850850. Its totient is φ = 255850848.

The previous prime is 255850841. The next prime is 255850891. The reversal of 255850849 is 948058552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254243025 + 1607824 = 15945^2 + 1268^2 .

It is a cyclic number.

It is not a de Polignac number, because 255850849 - 2³ = 255850841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255850799 and 255850808.

It is not a weakly prime, because it can be changed into another prime (255850841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127925424 + 127925425.

It is an arithmetic number, because the mean of its divisors is an integer number (127925425).

Almost surely, 2^255850849 is an apocalyptic number.

It is an amenable number.

255850849 is a deficient number, since it is larger than the sum of its proper divisors (1).

255850849 is an equidigital number, since it uses as much as digits as its factorization.

255850849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576000, while the sum is 46.

The square root of 255850849 is about 15995.3383521575. The cubic root of 255850849 is about 634.8370830528.

The spelling of 255850849 in words is "two hundred fifty-five million, eight hundred fifty thousand, eight hundred forty-nine".