800505003 has 16 divisors (see below), whose sum is σ = 1079853056. Its totient is φ = 527446080.

The previous prime is 800504983. The next prime is 800505019. The reversal of 800505003 is 300505008.

It is not a de Polignac number, because 800505003 - 2²⁸ = 532069547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (800575003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99375 + ... + 107127.

It is an arithmetic number, because the mean of its divisors is an integer number (67490816).

Almost surely, 2^800505003 is an apocalyptic number.

800505003 is a deficient number, since it is larger than the sum of its proper divisors (279348053).

800505003 is a wasteful number, since it uses less digits than its factorization.

800505003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8154.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 800505003 is about 28293.1971152077. The cubic root of 800505003 is about 928.5130603255.

The spelling of 800505003 in words is "eight hundred million, five hundred five thousand, three".