85258615 has 16 divisors (see below), whose sum is σ = 110488896. Its totient is φ = 62784000.

The previous prime is 85258597. The next prime is 85258627. The reversal of 85258615 is 51685258.

It is not a de Polignac number, because 85258615 - 2⁵ = 85258583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24430 + ... + 27700.

It is an arithmetic number, because the mean of its divisors is an integer number (6905556).

Almost surely, 2^85258615 is an apocalyptic number.

85258615 is a deficient number, since it is larger than the sum of its proper divisors (25230281).

85258615 is a wasteful number, since it uses less digits than its factorization.

85258615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3690.

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

The square root of 85258615 is about 9233.5591729300. The cubic root of 85258615 is about 440.1284318609.

The spelling of 85258615 in words is "eighty-five million, two hundred fifty-eight thousand, six hundred fifteen".