524520 has 96 divisors (see below), whose sum is σ = 1797120. Its totient is φ = 132480.

The previous prime is 524519. The next prime is 524521. The reversal of 524520 is 25425.

It is an interprime number because it is at equal distance from previous prime (524519) and next prime (524521).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 524493 and 524502.

It is not an unprimeable number, because it can be changed into a prime (524521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11137 + ... + 11183.

It is an arithmetic number, because the mean of its divisors is an integer number (18720).

2⁵²⁴⁵²⁰ 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 524520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (898560).

524520 is an abundant number, since it is smaller than the sum of its proper divisors (1272600).

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

524520 is a wasteful number, since it uses less digits than its factorization.

524520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 524520 is about 724.2375300963. The cubic root of 524520 is about 80.6468392253.

Adding to 524520 its reverse (25425), we get a palindrome (549945).

The spelling of 524520 in words is "five hundred twenty-four thousand, five hundred twenty".