520043345543 has 16 divisors (see below), whose sum is σ = 572307098880. Its totient is φ = 470350831104.

The previous prime is 520043345533. The next prime is 520043345557. The reversal of 520043345543 is 345543340025.

It is a cyclic number.

It is not a de Polignac number, because 520043345543 - 2¹⁴ = 520043329159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520043345497 and 520043345506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520043345533) 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, 909146 + ... + 1366247.

It is an arithmetic number, because the mean of its divisors is an integer number (35769193680).

Almost surely, 2^520043345543 is an apocalyptic number.

520043345543 is a deficient number, since it is larger than the sum of its proper divisors (52263753337).

520043345543 is a wasteful number, since it uses less digits than its factorization.

520043345543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275958.

The product of its (nonzero) digits is 432000, while the sum is 38.

Adding to 520043345543 its reverse (345543340025), we get a palindrome (865586685568).

The spelling of 520043345543 in words is "five hundred twenty billion, forty-three million, three hundred forty-five thousand, five hundred forty-three".