85516011 has 24 divisors (see below), whose sum is σ = 145726464. Its totient is φ = 47288880.

The previous prime is 85516009. The next prime is 85516033. The reversal of 85516011 is 11061558.

85516011 is a `hidden beast` number, since 8 + 5 + 51 + 601 + 1 = 666.

It is not a de Polignac number, because 85516011 - 2¹ = 85516009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85516051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19941 + ... + 23846.

It is an arithmetic number, because the mean of its divisors is an integer number (6071936).

Almost surely, 2^85516011 is an apocalyptic number.

85516011 is a deficient number, since it is larger than the sum of its proper divisors (60210453).

85516011 is a wasteful number, since it uses less digits than its factorization.

85516011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43831 (or 43828 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The square root of 85516011 is about 9247.4867396499. The cubic root of 85516011 is about 440.5709032123.

Adding to 85516011 its reverse (11061558), we get a palindrome (96577569).

The spelling of 85516011 in words is "eighty-five million, five hundred sixteen thousand, eleven".