528550 has 36 divisors (see below), whose sum is σ = 1108188. Its totient is φ = 186000.

The previous prime is 528527. The next prime is 528559. The reversal of 528550 is 55825.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528559) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17035 + ... + 17065.

It is an arithmetic number, because the mean of its divisors is an integer number (30783).

2⁵²⁸⁵⁵⁰ is an apocalyptic number.

528550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

528550 is an abundant number, since it is smaller than the sum of its proper divisors (579638).

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

528550 is a wasteful number, since it uses less digits than its factorization.

528550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 528550 is about 727.0144427726. The cubic root of 528550 is about 80.8528548404.

It can be divided in two parts, 5285 and 50, that added together give a palindrome (5335).

The spelling of 528550 in words is "five hundred twenty-eight thousand, five hundred fifty".