85305560 has 16 divisors (see below), whose sum is σ = 191937600. Its totient is φ = 34122208.

The previous prime is 85305557. The next prime is 85305569. The reversal of 85305560 is 6550358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85305569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066280 + ... + 1066359.

It is an arithmetic number, because the mean of its divisors is an integer number (11996100).

Almost surely, 2^85305560 is an apocalyptic number.

It is an amenable number.

85305560 is an abundant number, since it is smaller than the sum of its proper divisors (106632040).

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

85305560 is a wasteful number, since it uses less digits than its factorization.

85305560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132650 (or 2132646 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 85305560 is about 9236.1009089334. The cubic root of 85305560 is about 440.2091980417.

The spelling of 85305560 in words is "eighty-five million, three hundred five thousand, five hundred sixty".