520427543 has 2 divisors, whose sum is σ = 520427544. Its totient is φ = 520427542.

The previous prime is 520427527. The next prime is 520427549. The reversal of 520427543 is 345724025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520427543 - 2⁴ = 520427527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520427549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260213771 + 260213772.

It is an arithmetic number, because the mean of its divisors is an integer number (260213772).

Almost surely, 2^520427543 is an apocalyptic number.

520427543 is a deficient number, since it is larger than the sum of its proper divisors (1).

520427543 is an equidigital number, since it uses as much as digits as its factorization.

520427543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 520427543 is about 22812.8810762692. The cubic root of 520427543 is about 804.3654802101.

The spelling of 520427543 in words is "five hundred twenty million, four hundred twenty-seven thousand, five hundred forty-three".