80185585 has 4 divisors (see below), whose sum is σ = 96222708. Its totient is φ = 64148464.

The previous prime is 80185579. The next prime is 80185597. The reversal of 80185585 is 58558108.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16313521 + 63872064 = 4039^2 + 7992^2 .

It is a cyclic number.

It is not a de Polignac number, because 80185585 - 2³ = 80185577 is a prime.

It is a Duffinian 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, 8018554 + ... + 8018563.

It is an arithmetic number, because the mean of its divisors is an integer number (24055677).

Almost surely, 2^80185585 is an apocalyptic number.

It is an amenable number.

80185585 is a deficient number, since it is larger than the sum of its proper divisors (16037123).

80185585 is a wasteful number, since it uses less digits than its factorization.

80185585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16037122.

The product of its (nonzero) digits is 64000, while the sum is 40.

The square root of 80185585 is about 8954.6404171245. The cubic root of 80185585 is about 431.2198729917.

The spelling of 80185585 in words is "eighty million, one hundred eighty-five thousand, five hundred eighty-five".