520501343 has 2 divisors, whose sum is σ = 520501344. Its totient is φ = 520501342.

The previous prime is 520501327. The next prime is 520501361. The reversal of 520501343 is 343105025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520501343 - 2⁴ = 520501327 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520501313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260250671 + 260250672.

It is an arithmetic number, because the mean of its divisors is an integer number (260250672).

Almost surely, 2^520501343 is an apocalyptic number.

520501343 is a deficient number, since it is larger than the sum of its proper divisors (1).

520501343 is an equidigital number, since it uses as much as digits as its factorization.

520501343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 520501343 is about 22814.4985261566. The cubic root of 520501343 is about 804.4034998265.

Adding to 520501343 its reverse (343105025), we get a palindrome (863606368).

The spelling of 520501343 in words is "five hundred twenty million, five hundred one thousand, three hundred forty-three".