520353871 has 2 divisors, whose sum is σ = 520353872. Its totient is φ = 520353870.

The previous prime is 520353859. The next prime is 520353887. The reversal of 520353871 is 178353025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520353871 - 2⁵ = 520353839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520353571) 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, 260176935 + 260176936.

It is an arithmetic number, because the mean of its divisors is an integer number (260176936).

Almost surely, 2^520353871 is an apocalyptic number.

520353871 is a deficient number, since it is larger than the sum of its proper divisors (1).

520353871 is an equidigital number, since it uses as much as digits as its factorization.

520353871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 520353871 is about 22811.2663173266. The cubic root of 520353871 is about 804.3275229504.

The spelling of 520353871 in words is "five hundred twenty million, three hundred fifty-three thousand, eight hundred seventy-one".