520758516496 has 45 divisors (see below), whose sum is σ = 1045129408063. Its totient is φ = 251360251520.

The previous prime is 520758516491. The next prime is 520758516497. The reversal of 520758516496 is 694615857025.

It is a happy number.

The square root of 520758516496 is 721636.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 148560910096 + 372197606400 = 385436^2 + 610080^2 .

It is a super-2 number, since 2×520758516496² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58).

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 520758516496.

It is not an unprimeable number, because it can be changed into a prime (520758516491) 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 8 ways as a sum of consecutive naturals, for example, 83706666 + ... + 83712886.

Almost surely, 2^520758516496 is an apocalyptic number.

520758516496 is the 721636-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520758516496

520758516496 is an abundant number, since it is smaller than the sum of its proper divisors (524370891567).

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

520758516496 is an frugal number, since it uses more digits than its factorization.

520758516496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12508 (or 6252 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 58.

The spelling of 520758516496 in words is "five hundred twenty billion, seven hundred fifty-eight million, five hundred sixteen thousand, four hundred ninety-six".