80572585 has 16 divisors (see below), whose sum is σ = 102468240. Its totient is φ = 60712960.

The previous prime is 80572567. The next prime is 80572589. The reversal of 80572585 is 58527508.

It can be written as a sum of positive squares in 8 ways, for example, as 2903616 + 77668969 = 1704^2 + 8813^2 .

It is not a de Polignac number, because 80572585 - 2⁹ = 80572073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80572589) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 832 + ... + 12721.

It is an arithmetic number, because the mean of its divisors is an integer number (6404265).

Almost surely, 2^80572585 is an apocalyptic number.

It is an amenable number.

80572585 is a deficient number, since it is larger than the sum of its proper divisors (21895655).

80572585 is a wasteful number, since it uses less digits than its factorization.

80572585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13628.

The product of its (nonzero) digits is 112000, while the sum is 40.

The square root of 80572585 is about 8976.2233149582. The cubic root of 80572585 is about 431.9124926349.

The spelling of 80572585 in words is "eighty million, five hundred seventy-two thousand, five hundred eighty-five".