520055103 has 4 divisors (see below), whose sum is σ = 693406808. Its totient is φ = 346703400.

The previous prime is 520055089. The next prime is 520055113. The reversal of 520055103 is 301550025.

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

It is not a de Polignac number, because 520055103 - 2⁵ = 520055071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520055103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520055113) 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, 86675848 + ... + 86675853.

It is an arithmetic number, because the mean of its divisors is an integer number (173351702).

Almost surely, 2^520055103 is an apocalyptic number.

520055103 is a deficient number, since it is larger than the sum of its proper divisors (173351705).

520055103 is a wasteful number, since it uses less digits than its factorization.

520055103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173351704.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 520055103 is about 22804.7166831776. The cubic root of 520055103 is about 804.1735550801.

The spelling of 520055103 in words is "five hundred twenty million, fifty-five thousand, one hundred three".