85005065 has 4 divisors (see below), whose sum is σ = 102006084. Its totient is φ = 68004048.

The previous prime is 85005059. The next prime is 85005071. The reversal of 85005065 is 56050058.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56050058 = 2 ⋅28025029.

It is an interprime number because it is at equal distance from previous prime (85005059) and next prime (85005071).

It can be written as a sum of positive squares in 2 ways, for example, as 21977344 + 63027721 = 4688^2 + 7939^2 .

It is a cyclic number.

It is not a de Polignac number, because 85005065 - 2⁶ = 85005001 is a prime.

It is a super-2 number, since 2×85005065² = 14451722151308450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8500502 + ... + 8500511.

It is an arithmetic number, because the mean of its divisors is an integer number (25501521).

Almost surely, 2^85005065 is an apocalyptic number.

It is an amenable number.

85005065 is a deficient number, since it is larger than the sum of its proper divisors (17001019).

85005065 is a wasteful number, since it uses less digits than its factorization.

85005065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17001018.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 85005065 is about 9219.8191413932. The cubic root of 85005065 is about 439.6917003531.

The spelling of 85005065 in words is "eighty-five million, five thousand, sixty-five".