85512115 has 16 divisors (see below), whose sum is σ = 110835648. Its totient is φ = 62960256.

The previous prime is 85512113. The next prime is 85512121. The reversal of 85512115 is 51121558.

It is a cyclic number.

It is not a de Polignac number, because 85512115 - 2¹ = 85512113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85512113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22482 + ... + 26008.

It is an arithmetic number, because the mean of its divisors is an integer number (6927228).

Almost surely, 2^85512115 is an apocalyptic number.

85512115 is a deficient number, since it is larger than the sum of its proper divisors (25323533).

85512115 is a wasteful number, since it uses less digits than its factorization.

85512115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3918.

The product of its digits is 2000, while the sum is 28.

The square root of 85512115 is about 9247.2760854210. The cubic root of 85512115 is about 440.5642124952.

The spelling of 85512115 in words is "eighty-five million, five hundred twelve thousand, one hundred fifteen".