8257255 has 16 divisors (see below), whose sum is σ = 10178784. Its totient is φ = 6428800.

The previous prime is 8257243. The next prime is 8257259. The reversal of 8257255 is 5527528.

8257255 is nontrivially palindromic in base 3.

It is a de Polignac number, because none of the positive numbers 2^k-8257255 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8257255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8257259) 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 in 15 ways as a sum of consecutive naturals, for example, 41817 + ... + 42013.

It is an arithmetic number, because the mean of its divisors is an integer number (636174).

Almost surely, 2^8257255 is an apocalyptic number.

8257255 is a deficient number, since it is larger than the sum of its proper divisors (1921529).

8257255 is a wasteful number, since it uses less digits than its factorization.

8257255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386.

The product of its digits is 28000, while the sum is 34.

The square root of 8257255 is about 2873.5439791310. The cubic root of 8257255 is about 202.1212143769.

The spelling of 8257255 in words is "eight million, two hundred fifty-seven thousand, two hundred fifty-five".