80805508 has 18 divisors (see below), whose sum is σ = 164497326. Its totient is φ = 34630848.

The previous prime is 80805497. The next prime is 80805511. The reversal of 80805508 is 80550808.

It can be written as a sum of positive squares in only one way, i.e., 56520324 + 24285184 = 7518^2 + 4928^2 .

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 205941 + ... + 206332.

Almost surely, 2^80805508 is an apocalyptic number.

It is an amenable number.

80805508 is an abundant number, since it is smaller than the sum of its proper divisors (83691818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80805508 is a wasteful number, since it uses less digits than its factorization.

80805508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412291 (or 412282 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 80805508 is about 8989.1883949554. The cubic root of 80805508 is about 432.3282898399.

The spelling of 80805508 in words is "eighty million, eight hundred five thousand, five hundred eight".