85517011 has 4 divisors (see below), whose sum is σ = 85821624. Its totient is φ = 85212400.

The previous prime is 85517009. The next prime is 85517023. The reversal of 85517011 is 11071558.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85517011 - 2¹ = 85517009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85517041) 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 3 ways as a sum of consecutive naturals, for example, 151885 + ... + 152446.

It is an arithmetic number, because the mean of its divisors is an integer number (21455406).

Almost surely, 2^85517011 is an apocalyptic number.

85517011 is a deficient number, since it is larger than the sum of its proper divisors (304613).

85517011 is a wasteful number, since it uses less digits than its factorization.

85517011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304612.

The product of its (nonzero) digits is 1400, while the sum is 28.

The square root of 85517011 is about 9247.5408082365. The cubic root of 85517011 is about 440.5726205094.

Adding to 85517011 its reverse (11071558), we get a palindrome (96588569).

The spelling of 85517011 in words is "eighty-five million, five hundred seventeen thousand, eleven".