521160 has 64 divisors (see below), whose sum is σ = 1615680. Its totient is φ = 134400.

The previous prime is 521153. The next prime is 521161. The reversal of 521160 is 61125.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (521161) by changing a digit.

521160 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5110 + ... + 5210.

It is an arithmetic number, because the mean of its divisors is an integer number (25245).

2⁵²¹¹⁶⁰ 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 521160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (807840).

521160 is an abundant number, since it is smaller than the sum of its proper divisors (1094520).

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

521160 is a wasteful number, since it uses less digits than its factorization.

521160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 521160 is about 721.9141223165. The cubic root of 521160 is about 80.4742661723.

Adding to 521160 its reverse (61125), we get a palindrome (582285).

The spelling of 521160 in words is "five hundred twenty-one thousand, one hundred sixty".