85258511 has 8 divisors (see below), whose sum is σ = 91893984. Its totient is φ = 78634080.

The previous prime is 85258501. The next prime is 85258531. The reversal of 85258511 is 11585258.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85258511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85258501) 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 7 ways as a sum of consecutive naturals, for example, 20750 + ... + 24516.

It is an arithmetic number, because the mean of its divisors is an integer number (11486748).

Almost surely, 2^85258511 is an apocalyptic number.

85258511 is a deficient number, since it is larger than the sum of its proper divisors (6635473).

85258511 is a wasteful number, since it uses less digits than its factorization.

85258511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5521.

The product of its digits is 16000, while the sum is 35.

The square root of 85258511 is about 9233.5535412971. The cubic root of 85258511 is about 440.1282529020.

The spelling of 85258511 in words is "eighty-five million, two hundred fifty-eight thousand, five hundred eleven".