512817085 has 32 divisors (see below), whose sum is σ = 712488960. Its totient is φ = 350644800.

The previous prime is 512817083. The next prime is 512817103. The reversal of 512817085 is 580718215.

It is not a de Polignac number, because 512817085 - 2¹ = 512817083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512817083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71200 + ... + 78070.

It is an arithmetic number, because the mean of its divisors is an integer number (22265280).

Almost surely, 2^512817085 is an apocalyptic number.

512817085 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

512817085 is a deficient number, since it is larger than the sum of its proper divisors (199671875).

512817085 is a wasteful number, since it uses less digits than its factorization.

512817085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6969.

The product of its (nonzero) digits is 22400, while the sum is 37.

The square root of 512817085 is about 22645.4649985378. The cubic root of 512817085 is about 800.4253389226.

The spelling of 512817085 in words is "five hundred twelve million, eight hundred seventeen thousand, eighty-five".