520030 has 64 divisors (see below), whose sum is σ = 1244160. Its totient is φ = 152064.

The previous prime is 520021. The next prime is 520031. The reversal of 520030 is 30025.

520030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 519989 and 520016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22599 + ... + 22621.

It is an arithmetic number, because the mean of its divisors is an integer number (19440).

2⁵²⁰⁰³⁰ is an apocalyptic number.

520030 is an abundant number, since it is smaller than the sum of its proper divisors (724130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520030 is a wasteful number, since it uses less digits than its factorization.

520030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73.

The product of its (nonzero) digits is 30, while the sum is 10.

The square root of 520030 is about 721.1310560501. The cubic root of 520030 is about 80.4160615750.

520030 divided by its sum of digits (10) gives a triangular number (52003 = T₃₂₂).

Adding to 520030 its reverse (30025), we get a palindrome (550055).

The spelling of 520030 in words is "five hundred twenty thousand, thirty".