85165582 has 4 divisors (see below), whose sum is σ = 127748376. Its totient is φ = 42582790.

The previous prime is 85165579. The next prime is 85165603. The reversal of 85165582 is 28556158.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21291394 + ... + 21291397.

It is an arithmetic number, because the mean of its divisors is an integer number (31937094).

Almost surely, 2^85165582 is an apocalyptic number.

85165582 is a deficient number, since it is larger than the sum of its proper divisors (42582794).

85165582 is a wasteful number, since it uses less digits than its factorization.

85165582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42582793.

The product of its digits is 96000, while the sum is 40.

The square root of 85165582 is about 9228.5200330280. The cubic root of 85165582 is about 439.9682862817.

The spelling of 85165582 in words is "eighty-five million, one hundred sixty-five thousand, five hundred eighty-two".