80805305 has 8 divisors (see below), whose sum is σ = 110818752. Its totient is φ = 55409328.

The previous prime is 80805293. The next prime is 80805317. The reversal of 80805305 is 50350808.

It is an interprime number because it is at equal distance from previous prime (80805293) and next prime (80805317).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80805305 - 2⁴ = 80805289 is a prime.

It is a super-2 number, since 2×80805305² = 13058994632286050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1154327 + ... + 1154396.

It is an arithmetic number, because the mean of its divisors is an integer number (13852344).

Almost surely, 2^80805305 is an apocalyptic number.

It is an amenable number.

80805305 is a deficient number, since it is larger than the sum of its proper divisors (30013447).

80805305 is a wasteful number, since it uses less digits than its factorization.

80805305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308735.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 80805305 is about 8989.1771036063. The cubic root of 80805305 is about 432.3279278071.

The spelling of 80805305 in words is "eighty million, eight hundred five thousand, three hundred five".