80506516 has 12 divisors (see below), whose sum is σ = 141120532. Its totient is φ = 40186368.

The previous prime is 80506507. The next prime is 80506529. The reversal of 80506516 is 61560508.

It can be written as a sum of positive squares in 2 ways, for example, as 18096516 + 62410000 = 4254^2 + 7900^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 13965 + ... + 18868.

Almost surely, 2^80506516 is an apocalyptic number.

It is an amenable number.

80506516 is a deficient number, since it is larger than the sum of its proper divisors (60614016).

80506516 is a wasteful number, since it uses less digits than its factorization.

80506516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33450 (or 33448 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 80506516 is about 8972.5423375986. The cubic root of 80506516 is about 431.7944051994.

The spelling of 80506516 in words is "eighty million, five hundred six thousand, five hundred sixteen".