520216103 has 4 divisors (see below), whose sum is σ = 567508488. Its totient is φ = 472923720.

The previous prime is 520216087. The next prime is 520216117. The reversal of 520216103 is 301612025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 520216103 - 2⁴ = 520216087 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 (520216153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23646176 + ... + 23646197.

It is an arithmetic number, because the mean of its divisors is an integer number (141877122).

Almost surely, 2^520216103 is an apocalyptic number.

520216103 is a deficient number, since it is larger than the sum of its proper divisors (47292385).

520216103 is a wasteful number, since it uses less digits than its factorization.

520216103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47292384.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 520216103 is about 22808.2463815174. The cubic root of 520216103 is about 804.2565325590.

Adding to 520216103 its reverse (301612025), we get a palindrome (821828128).

The spelling of 520216103 in words is "five hundred twenty million, two hundred sixteen thousand, one hundred three".