85548565 has 4 divisors (see below), whose sum is σ = 102658284. Its totient is φ = 68438848.

The previous prime is 85548563. The next prime is 85548587. The reversal of 85548565 is 56584558.

It is a happy number.

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 55011889 + 30536676 = 7417^2 + 5526^2 .

It is a cyclic number.

It is not a de Polignac number, because 85548565 - 2¹ = 85548563 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85548563) 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 3 ways as a sum of consecutive naturals, for example, 8554852 + ... + 8554861.

It is an arithmetic number, because the mean of its divisors is an integer number (25664571).

Almost surely, 2^85548565 is an apocalyptic number.

It is an amenable number.

85548565 is a deficient number, since it is larger than the sum of its proper divisors (17109719).

85548565 is a wasteful number, since it uses less digits than its factorization.

85548565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17109718.

The product of its digits is 960000, while the sum is 46.

The square root of 85548565 is about 9249.2467260853. The cubic root of 85548565 is about 440.6268012266.

The spelling of 85548565 in words is "eighty-five million, five hundred forty-eight thousand, five hundred sixty-five".