85518711 has 6 divisors (see below), whose sum is σ = 123527040. Its totient is φ = 57012468.

The previous prime is 85518703. The next prime is 85518749. The reversal of 85518711 is 11781558.

It is a happy number.

It is not a de Polignac number, because 85518711 - 2³ = 85518703 is a prime.

It is a super-2 number, since 2×85518711² = 14626899862203042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85518751) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4751031 + ... + 4751048.

It is an arithmetic number, because the mean of its divisors is an integer number (20587840).

Almost surely, 2^85518711 is an apocalyptic number.

85518711 is a deficient number, since it is larger than the sum of its proper divisors (38008329).

85518711 is a wasteful number, since it uses less digits than its factorization.

85518711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9502085 (or 9502082 counting only the distinct ones).

The product of its digits is 11200, while the sum is 36.

The square root of 85518711 is about 9247.6327241084. The cubic root of 85518711 is about 440.5755398837.

The spelling of 85518711 in words is "eighty-five million, five hundred eighteen thousand, seven hundred eleven".