85502585 has 16 divisors (see below), whose sum is σ = 121305600. Its totient is φ = 56607936.

The previous prime is 85502581. The next prime is 85502587. The reversal of 85502585 is 58520558.

It is not a de Polignac number, because 85502585 - 2² = 85502581 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85502581) 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, 41105 + ... + 43134.

It is an arithmetic number, because the mean of its divisors is an integer number (7581600).

Almost surely, 2^85502585 is an apocalyptic number.

It is an amenable number.

85502585 is a deficient number, since it is larger than the sum of its proper divisors (35803015).

85502585 is a wasteful number, since it uses less digits than its factorization.

85502585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84280.

The product of its (nonzero) digits is 80000, while the sum is 38.

The square root of 85502585 is about 9246.7607841882. The cubic root of 85502585 is about 440.5478454852.

The spelling of 85502585 in words is "eighty-five million, five hundred two thousand, five hundred eighty-five".