85585161 has 4 divisors (see below), whose sum is σ = 114113552. Its totient is φ = 57056772.

The previous prime is 85585151. The next prime is 85585169. The reversal of 85585161 is 16158558.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 85585161 - 2¹⁵ = 85552393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85585169) by changing a digit.

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, 14264191 + ... + 14264196.

It is an arithmetic number, because the mean of its divisors is an integer number (28528388).

Almost surely, 2^85585161 is an apocalyptic number.

It is an amenable number.

85585161 is a deficient number, since it is larger than the sum of its proper divisors (28528391).

85585161 is a wasteful number, since it uses less digits than its factorization.

85585161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28528390.

The product of its digits is 48000, while the sum is 39.

The square root of 85585161 is about 9251.2248378255. The cubic root of 85585161 is about 440.6896227738.

The spelling of 85585161 in words is "eighty-five million, five hundred eighty-five thousand, one hundred sixty-one".