528531 has 8 divisors (see below), whose sum is σ = 722064. Its totient is φ = 343680.

The previous prime is 528527. The next prime is 528559. The reversal of 528531 is 135825.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 528531 - 2² = 528527 is a prime.

It is a super-2 number, since 2×528531² = 558690035922, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528511) 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, 2026 + ... + 2271.

It is an arithmetic number, because the mean of its divisors is an integer number (90258).

2⁵²⁸⁵³¹ is an apocalyptic number.

528531 is a deficient number, since it is larger than the sum of its proper divisors (193533).

528531 is a wasteful number, since it uses less digits than its factorization.

528531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4341.

The product of its digits is 1200, while the sum is 24.

The square root of 528531 is about 727.0013755145. The cubic root of 528531 is about 80.8518860121.

The spelling of 528531 in words is "five hundred twenty-eight thousand, five hundred thirty-one".