8255857 has 2 divisors, whose sum is σ = 8255858. Its totient is φ = 8255856.

The previous prime is 8255837. The next prime is 8255867. The reversal of 8255857 is 7585528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8202496 + 53361 = 2864^2 + 231^2 .

It is a cyclic number.

It is not a de Polignac number, because 8255857 - 2¹⁹ = 7731569 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8255837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4127928 + 4127929.

It is an arithmetic number, because the mean of its divisors is an integer number (4127929).

Almost surely, 2^8255857 is an apocalyptic number.

It is an amenable number.

8255857 is a deficient number, since it is larger than the sum of its proper divisors (1).

8255857 is an equidigital number, since it uses as much as digits as its factorization.

8255857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112000, while the sum is 40.

The square root of 8255857 is about 2873.3007152054. The cubic root of 8255857 is about 202.1098069780.

The spelling of 8255857 in words is "eight million, two hundred fifty-five thousand, eight hundred fifty-seven".