85560990 has 32 divisors (see below), whose sum is σ = 216155520. Its totient is φ = 21615264.

The previous prime is 85560931. The next prime is 85561061. The reversal of 85560990 is 9906558.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74484 + ... + 75623.

It is an arithmetic number, because the mean of its divisors is an integer number (6754860).

Almost surely, 2^85560990 is an apocalyptic number.

85560990 is an abundant number, since it is smaller than the sum of its proper divisors (130594530).

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

85560990 is a wasteful number, since it uses less digits than its factorization.

85560990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150136.

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 85560990 is about 9249.9183780183. The cubic root of 85560990 is about 440.6481322799.

The spelling of 85560990 in words is "eighty-five million, five hundred sixty thousand, nine hundred ninety".