52515202013 has 8 divisors (see below), whose sum is σ = 53286200568. Its totient is φ = 51749576704.

The previous prime is 52515201983. The next prime is 52515202021. The reversal of 52515202013 is 31020251525.

It can be written as a sum of positive squares in 4 ways, for example, as 21633114724 + 30882087289 = 147082^2 + 175733^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52515202013 - 2²⁰ = 52514153437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52515202063) 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 7 ways as a sum of consecutive naturals, for example, 1323620 + ... + 1362717.

It is an arithmetic number, because the mean of its divisors is an integer number (6660775071).

Almost surely, 2^52515202013 is an apocalyptic number.

It is an amenable number.

52515202013 is a deficient number, since it is larger than the sum of its proper divisors (770998555).

52515202013 is a wasteful number, since it uses less digits than its factorization.

52515202013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686623.

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 52515202013 its reverse (31020251525), we get a palindrome (83535453538).

The spelling of 52515202013 in words is "fifty-two billion, five hundred fifteen million, two hundred two thousand, thirteen".