520351 has 6 divisors (see below), whose sum is σ = 563640. Its totient is φ = 480168.

The previous prime is 520349. The next prime is 520357. The reversal of 520351 is 153025.

It is not a de Polignac number, because 520351 - 2¹ = 520349 is a prime.

It is a Duffinian number.

520351 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520357) 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 in 5 ways as a sum of consecutive naturals, for example, 1371 + ... + 1708.

It is an arithmetic number, because the mean of its divisors is an integer number (93940).

2⁵²⁰³⁵¹ is an apocalyptic number.

520351 is a deficient number, since it is larger than the sum of its proper divisors (43289).

520351 is a wasteful number, since it uses less digits than its factorization.

520351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105 (or 3092 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 520351 is about 721.3535887483. The cubic root of 520351 is about 80.4326043682.

Adding to 520351 its reverse (153025), we get a palindrome (673376).

The spelling of 520351 in words is "five hundred twenty thousand, three hundred fifty-one".