520573505368 has 64 divisors (see below), whose sum is σ = 1201152499200. Its totient is φ = 206420236800.

The previous prime is 520573505323. The next prime is 520573505369. The reversal of 520573505368 is 863505375025.

It is a super-2 number, since 2×520573505368² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520573505369) 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, 4577908 + ... + 4690243.

It is an arithmetic number, because the mean of its divisors is an integer number (18768007800).

Almost surely, 2^520573505368 is an apocalyptic number.

It is an amenable number.

520573505368 is an abundant number, since it is smaller than the sum of its proper divisors (680578993832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520573505368 is a wasteful number, since it uses less digits than its factorization.

520573505368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9268240 (or 9268236 counting only the distinct ones).

The product of its (nonzero) digits is 3780000, while the sum is 49.

The spelling of 520573505368 in words is "five hundred twenty billion, five hundred seventy-three million, five hundred five thousand, three hundred sixty-eight".