800555012 has 12 divisors (see below), whose sum is σ = 1435141596. Its totient is φ = 390514560.

The previous prime is 800554991. The next prime is 800555023. The reversal of 800555012 is 210555008.

It can be written as a sum of positive squares in 2 ways, for example, as 427910596 + 372644416 = 20686^2 + 19304^2 .

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 3 ways as a sum of consecutive naturals, for example, 2440553 + ... + 2440880.

It is an arithmetic number, because the mean of its divisors is an integer number (119595133).

Almost surely, 2^800555012 is an apocalyptic number.

800555012 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

800555012 is a deficient number, since it is larger than the sum of its proper divisors (634586584).

800555012 is a wasteful number, since it uses less digits than its factorization.

800555012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4881478 (or 4881476 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 800555012 is about 28294.0808650855. The cubic root of 800555012 is about 928.5323952214.

The spelling of 800555012 in words is "eight hundred million, five hundred fifty-five thousand, twelve".