85258515 has 8 divisors (see below), whose sum is σ = 136413648. Its totient is φ = 45471200.

The previous prime is 85258501. The next prime is 85258531. The reversal of 85258515 is 51585258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85258515 - 2⁴ = 85258499 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2841936 + ... + 2841965.

It is an arithmetic number, because the mean of its divisors is an integer number (17051706).

Almost surely, 2^85258515 is an apocalyptic number.

85258515 is a deficient number, since it is larger than the sum of its proper divisors (51155133).

85258515 is a wasteful number, since it uses less digits than its factorization.

85258515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5683909.

The product of its digits is 80000, while the sum is 39.

The square root of 85258515 is about 9233.5537578984. The cubic root of 85258515 is about 440.1282597850.

The spelling of 85258515 in words is "eighty-five million, two hundred fifty-eight thousand, five hundred fifteen".