528542 has 16 divisors (see below), whose sum is σ = 954240. Its totient is φ = 214488.

The previous prime is 528527. The next prime is 528559. The reversal of 528542 is 245825.

It is an Ulam number.

It is a d-powerful number, because it can be written as 5² + 2¹⁸ + 5³ + 8 + 4⁶ + 2¹⁸ .

It is a congruent number.

It is an unprimeable number.

528542 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728 + ... + 1259.

It is an arithmetic number, because the mean of its divisors is an integer number (59640).

2⁵²⁸⁵⁴² is an apocalyptic number.

528542 is a deficient number, since it is larger than the sum of its proper divisors (425698).

528542 is a wasteful number, since it uses less digits than its factorization.

528542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015.

The product of its digits is 3200, while the sum is 26.

The square root of 528542 is about 727.0089407978. The cubic root of 528542 is about 80.8524469155.

The spelling of 528542 in words is "five hundred twenty-eight thousand, five hundred forty-two".