525224 has 32 divisors (see below), whose sum is σ = 1149120. Its totient is φ = 220416.

The previous prime is 525221. The next prime is 525241. The reversal of 525224 is 422525.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 525196 and 525205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4592 + ... + 4704.

It is an arithmetic number, because the mean of its divisors is an integer number (35910).

2⁵²⁵²²⁴ 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 525224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (574560).

525224 is an abundant number, since it is smaller than the sum of its proper divisors (623896).

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

525224 is a wasteful number, since it uses less digits than its factorization.

With its successor (525225) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (209).

525224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 205 counting only the distinct ones).

The product of its digits is 800, while the sum is 20.

The square root of 525224 is about 724.7233955103. The cubic root of 525224 is about 80.6829039402.

Adding to 525224 its reverse (422525), we get a palindrome (947749).

The spelling of 525224 in words is "five hundred twenty-five thousand, two hundred twenty-four".