521180 has 48 divisors (see below), whose sum is σ = 1257984. Its totient is φ = 179520.

The previous prime is 521179. The next prime is 521201. The reversal of 521180 is 81125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5009 + ... + 5111.

It is an arithmetic number, because the mean of its divisors is an integer number (26208).

2⁵²¹¹⁸⁰ 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 521180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628992).

521180 is an abundant number, since it is smaller than the sum of its proper divisors (736804).

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

521180 is a wasteful number, since it uses less digits than its factorization.

521180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 521180 is about 721.9279742467. The cubic root of 521180 is about 80.4752955841.

The spelling of 521180 in words is "five hundred twenty-one thousand, one hundred eighty".