85529220 has 48 divisors (see below), whose sum is σ = 273694848. Its totient is φ = 19549440.

The previous prime is 85529183. The next prime is 85529221. The reversal of 85529220 is 2292558.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (85529221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101401 + ... + 102240.

It is an arithmetic number, because the mean of its divisors is an integer number (5701976).

Almost surely, 2^85529220 is an apocalyptic number.

It is an amenable number.

85529220 is an abundant number, since it is smaller than the sum of its proper divisors (188165628).

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

85529220 is a wasteful number, since it uses less digits than its factorization.

85529220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203660 (or 203658 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 85529220 is about 9248.2009061222. The cubic root of 85529220 is about 440.5935859099.

The spelling of 85529220 in words is "eighty-five million, five hundred twenty-nine thousand, two hundred twenty".