85559990 has 8 divisors (see below), whose sum is σ = 154008000. Its totient is φ = 34223992.

The previous prime is 85559987. The next prime is 85560001. The reversal of 85559990 is 9995558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4277990 + ... + 4278009.

It is an arithmetic number, because the mean of its divisors is an integer number (19251000).

Almost surely, 2^85559990 is an apocalyptic number.

85559990 is a deficient number, since it is larger than the sum of its proper divisors (68448010).

85559990 is a wasteful number, since it uses less digits than its factorization.

85559990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8556006.

The product of its (nonzero) digits is 729000, while the sum is 50.

The square root of 85559990 is about 9249.8643233293. The cubic root of 85559990 is about 440.6464155713.

The spelling of 85559990 in words is "eighty-five million, five hundred fifty-nine thousand, nine hundred ninety".