520504103 has 16 divisors (see below), whose sum is σ = 605732160. Its totient is φ = 438068736.

The previous prime is 520504091. The next prime is 520504109. The reversal of 520504103 is 301405025.

It is not a de Polignac number, because 520504103 - 2⁴ = 520504087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520504109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83201 + ... + 89237.

It is an arithmetic number, because the mean of its divisors is an integer number (37858260).

Almost surely, 2^520504103 is an apocalyptic number.

520504103 is a deficient number, since it is larger than the sum of its proper divisors (85228057).

520504103 is a wasteful number, since it uses less digits than its factorization.

520504103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6266.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 520504103 is about 22814.5590139279. The cubic root of 520504103 is about 804.4049216286.

Adding to 520504103 its reverse (301405025), we get a palindrome (821909128).

The spelling of 520504103 in words is "five hundred twenty million, five hundred four thousand, one hundred three".