520280543 has 2 divisors, whose sum is σ = 520280544. Its totient is φ = 520280542.

The previous prime is 520280531. The next prime is 520280557. The reversal of 520280543 is 345082025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520280543 - 2⁶ = 520280479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520289543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260140271 + 260140272.

It is an arithmetic number, because the mean of its divisors is an integer number (260140272).

Almost surely, 2^520280543 is an apocalyptic number.

520280543 is a deficient number, since it is larger than the sum of its proper divisors (1).

520280543 is an equidigital number, since it uses as much as digits as its factorization.

520280543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 520280543 is about 22809.6589847371. The cubic root of 520280543 is about 804.2897393685.

The spelling of 520280543 in words is "five hundred twenty million, two hundred eighty thousand, five hundred forty-three".