520055 has 8 divisors (see below), whose sum is σ = 637632. Its totient is φ = 407008.

The previous prime is 520043. The next prime is 520063. The reversal of 520055 is 550025.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520055 - 2¹⁰ = 519031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872 + ... + 1341.

It is an arithmetic number, because the mean of its divisors is an integer number (79704).

2⁵²⁰⁰⁵⁵ is an apocalyptic number.

520055 is a deficient number, since it is larger than the sum of its proper divisors (117577).

520055 is a wasteful number, since it uses less digits than its factorization.

520055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265.

The product of its (nonzero) digits is 250, while the sum is 17.

The square root of 520055 is about 721.1483897229. The cubic root of 520055 is about 80.4173501990.

The spelling of 520055 in words is "five hundred twenty thousand, fifty-five".