8255717 has 2 divisors, whose sum is σ = 8255718. Its totient is φ = 8255716.

The previous prime is 8255713. The next prime is 8255771. The reversal of 8255717 is 7175528.

Together with next prime (8255771) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4866436 + 3389281 = 2206^2 + 1841^2 .

It is a cyclic number.

It is not a de Polignac number, because 8255717 - 2² = 8255713 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8255711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4127858 + 4127859.

It is an arithmetic number, because the mean of its divisors is an integer number (4127859).

Almost surely, 2^8255717 is an apocalyptic number.

It is an amenable number.

8255717 is a deficient number, since it is larger than the sum of its proper divisors (1).

8255717 is an equidigital number, since it uses as much as digits as its factorization.

8255717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19600, while the sum is 35.

The square root of 8255717 is about 2873.2763528766. The cubic root of 8255717 is about 202.1086645352.

The spelling of 8255717 in words is "eight million, two hundred fifty-five thousand, seven hundred seventeen".