85504085 has 16 divisors (see below), whose sum is σ = 108423360. Its totient is φ = 64552320.

The previous prime is 85504079. The next prime is 85504099. The reversal of 85504085 is 58040558.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-85504085 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25094 + ... + 28296.

It is an arithmetic number, because the mean of its divisors is an integer number (6776460).

Almost surely, 2^85504085 is an apocalyptic number.

85504085 is the 5339-th octagonal number.

It is an amenable number.

85504085 is a deficient number, since it is larger than the sum of its proper divisors (22919275).

85504085 is a wasteful number, since it uses less digits than its factorization.

85504085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3508.

The product of its (nonzero) digits is 32000, while the sum is 35.

The square root of 85504085 is about 9246.8418933169. The cubic root of 85504085 is about 440.5504216954.

The spelling of 85504085 in words is "eighty-five million, five hundred four thousand, eighty-five".