805818052 has 24 divisors (see below), whose sum is σ = 1543559192. Its totient is φ = 365817600.

The previous prime is 805818031. The next prime is 805818089. The reversal of 805818052 is 250818508.

It can be written as a sum of positive squares in 4 ways, for example, as 60746436 + 745071616 = 7794^2 + 27296^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123849 + ... + 130192.

Almost surely, 2^805818052 is an apocalyptic number.

It is an amenable number.

805818052 is a deficient number, since it is larger than the sum of its proper divisors (737741140).

805818052 is a wasteful number, since it uses less digits than its factorization.

805818052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254119 (or 254117 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 37.

The square root of 805818052 is about 28386.9345298149. The cubic root of 805818052 is about 930.5627503228.

The spelling of 805818052 in words is "eight hundred five million, eight hundred eighteen thousand, fifty-two".