528331 has 4 divisors (see below), whose sum is σ = 533664. Its totient is φ = 523000.

The previous prime is 528329. The next prime is 528373. The reversal of 528331 is 133825.

528331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 528331 - 2¹ = 528329 is a prime.

It is a super-2 number, since 2×528331² = 558267291122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (528391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2515 + ... + 2716.

It is an arithmetic number, because the mean of its divisors is an integer number (133416).

2⁵²⁸³³¹ is an apocalyptic number.

528331 is a deficient number, since it is larger than the sum of its proper divisors (5333).

528331 is a wasteful number, since it uses less digits than its factorization.

528331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5332.

The product of its digits is 720, while the sum is 22.

The square root of 528331 is about 726.8638111779. The cubic root of 528331 is about 80.8416864102.

The spelling of 528331 in words is "five hundred twenty-eight thousand, three hundred thirty-one".