520331743 has 2 divisors, whose sum is σ = 520331744. Its totient is φ = 520331742.

The previous prime is 520331711. The next prime is 520331759. The reversal of 520331743 is 347133025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520331743 - 2⁵ = 520331711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520331143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260165871 + 260165872.

It is an arithmetic number, because the mean of its divisors is an integer number (260165872).

Almost surely, 2^520331743 is an apocalyptic number.

520331743 is a deficient number, since it is larger than the sum of its proper divisors (1).

520331743 is an equidigital number, since it uses as much as digits as its factorization.

520331743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 520331743 is about 22810.7812886801. The cubic root of 520331743 is about 804.3161214711.

Adding to 520331743 its reverse (347133025), we get a palindrome (867464768).

The spelling of 520331743 in words is "five hundred twenty million, three hundred thirty-one thousand, seven hundred forty-three".