525528 has 40 divisors (see below), whose sum is σ = 1473780. Its totient is φ = 174960.
The previous prime is 525517. The next prime is 525529. The reversal of 525528 is 825525.
525528 is nontrivially palindromic in base 11.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a zygodrome in base 3.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (525529) by changing a digit.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 243 + ... + 1053.
2525528 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 525528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (736890).
525528 is an abundant number, since it is smaller than the sum of its proper divisors (948252).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
525528 is a wasteful number, since it uses less digits than its factorization.
525528 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 829 (or 816 counting only the distinct ones).
The product of its digits is 4000, while the sum is 27.
The square root of 525528 is about 724.9331003617. The cubic root of 525528 is about 80.6984673774.
The spelling of 525528 in words is "five hundred twenty-five thousand, five hundred twenty-eight".
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