500002805 has 4 divisors (see below), whose sum is σ = 600003372. Its totient is φ = 400002240.

The previous prime is 500002799. The next prime is 500002807. The reversal of 500002805 is 508200005.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 297424516 + 202578289 = 17246^2 + 14233^2 .

It is not a de Polignac number, because 500002805 - 2¹⁰ = 500001781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500002807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50000276 + ... + 50000285.

It is an arithmetic number, because the mean of its divisors is an integer number (150000843).

Almost surely, 2^500002805 is an apocalyptic number.

It is an amenable number.

500002805 is a deficient number, since it is larger than the sum of its proper divisors (100000567).

500002805 is a wasteful number, since it uses less digits than its factorization.

500002805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100000566.

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

The square root of 500002805 is about 22360.7424966167. The cubic root of 500002805 is about 793.7020102013.

The spelling of 500002805 in words is "five hundred million, two thousand, eight hundred five".