520504053642213 has 4 divisors (see below), whose sum is σ = 694005404856288. Its totient is φ = 347002702428140.

The previous prime is 520504053642203. The next prime is 520504053642253. The reversal of 520504053642213 is 312246350405025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 520504053642213 - 2⁶ = 520504053642149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520504053642203) 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, 86750675607033 + ... + 86750675607038.

It is an arithmetic number, because the mean of its divisors is an integer number (173501351214072).

Almost surely, 2^{520504053642213} is an apocalyptic number.

It is an amenable number.

520504053642213 is a deficient number, since it is larger than the sum of its proper divisors (173501351214075).

520504053642213 is a wasteful number, since it uses less digits than its factorization.

520504053642213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173501351214074.

The product of its (nonzero) digits is 864000, while the sum is 42.

The spelling of 520504053642213 in words is "five hundred twenty trillion, five hundred four billion, fifty-three million, six hundred forty-two thousand, two hundred thirteen".