85185020 has 12 divisors (see below), whose sum is σ = 178888584. Its totient is φ = 34074000.

The previous prime is 85184987. The next prime is 85185041. The reversal of 85185020 is 2058158.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2129606 + ... + 2129645.

It is an arithmetic number, because the mean of its divisors is an integer number (14907382).

Almost surely, 2^85185020 is an apocalyptic number.

It is an amenable number.

85185020 is an abundant number, since it is smaller than the sum of its proper divisors (93703564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85185020 is a wasteful number, since it uses less digits than its factorization.

85185020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4259260 (or 4259258 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 85185020 is about 9229.5731212229. The cubic root of 85185020 is about 440.0017561913.

The spelling of 85185020 in words is "eighty-five million, one hundred eighty-five thousand, twenty".