520980 has 48 divisors (see below), whose sum is σ = 1538880. Its totient is φ = 131328.

The previous prime is 520969. The next prime is 520981. The reversal of 520980 is 89025.

It is a self number, because there is not a number n which added to its sum of digits gives 520980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 912 + ... + 1368.

It is an arithmetic number, because the mean of its divisors is an integer number (32060).

2⁵²⁰⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (769440).

520980 is an abundant number, since it is smaller than the sum of its proper divisors (1017900).

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

520980 is a wasteful number, since it uses less digits than its factorization.

520980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 520980 is about 721.7894429818. The cubic root of 520980 is about 80.4650002809.

The spelling of 520980 in words is "five hundred twenty thousand, nine hundred eighty".