805250 has 16 divisors (see below), whose sum is σ = 1507896. Its totient is φ = 322000.

The previous prime is 805249. The next prime is 805267. The reversal of 805250 is 52508.

It can be written as a sum of positive squares in 4 ways, for example, as 346921 + 458329 = 589^2 + 677^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1361 + ... + 1860.

2⁸⁰⁵²⁵⁰ is an apocalyptic number.

805250 is a deficient number, since it is larger than the sum of its proper divisors (702646).

805250 is a wasteful number, since it uses less digits than its factorization.

805250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238 (or 3228 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 805250 is about 897.3572309844. The cubic root of 805250 is about 93.0344035817.

Adding to 805250 its reverse (52508), we get a palindrome (857758).

The spelling of 805250 in words is "eight hundred five thousand, two hundred fifty".