520504410563113 has 4 divisors (see below), whose sum is σ = 520505368590420. Its totient is φ = 520503452535808.

The previous prime is 520504410563107. The next prime is 520504410563131. The reversal of 520504410563113 is 311365014405025.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 197823437360784 + 322680973202329 = 14064972^2 + 17963323^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520504410563113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520504410563153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478198228 + ... + 479285461.

It is an arithmetic number, because the mean of its divisors is an integer number (130126342147605).

Almost surely, 2^{520504410563113} is an apocalyptic number.

It is an amenable number.

520504410563113 is a deficient number, since it is larger than the sum of its proper divisors (958027307).

520504410563113 is an equidigital number, since it uses as much as digits as its factorization.

520504410563113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958027306.

The product of its (nonzero) digits is 216000, while the sum is 40.

Adding to 520504410563113 its reverse (311365014405025), we get a palindrome (831869424968138).

The spelling of 520504410563113 in words is "five hundred twenty trillion, five hundred four billion, four hundred ten million, five hundred sixty-three thousand, one hundred thirteen".