515712085 has 16 divisors (see below), whose sum is σ = 748866816. Its totient is φ = 332828928.

The previous prime is 515712083. The next prime is 515712089. The reversal of 515712085 is 580217515.

It is a cyclic number.

It is not a de Polignac number, because 515712085 - 2¹ = 515712083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 515712085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515712083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432777 + ... + 433966.

It is an arithmetic number, because the mean of its divisors is an integer number (46804176).

Almost surely, 2^515712085 is an apocalyptic number.

It is an amenable number.

515712085 is a deficient number, since it is larger than the sum of its proper divisors (233154731).

515712085 is a wasteful number, since it uses less digits than its factorization.

515712085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866772.

The product of its (nonzero) digits is 14000, while the sum is 34.

The square root of 515712085 is about 22709.2951233630. The cubic root of 515712085 is about 801.9287238974.

The spelling of 515712085 in words is "five hundred fifteen million, seven hundred twelve thousand, eighty-five".