528266 has 4 divisors (see below), whose sum is σ = 792402. Its totient is φ = 264132.

The previous prime is 528263. The next prime is 528289. The reversal of 528266 is 662825.

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

It can be written as a sum of positive squares in only one way, i.e., 390625 + 137641 = 625^2 + 371^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (528263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132065 + ... + 132068.

2⁵²⁸²⁶⁶ is an apocalyptic number.

528266 is a deficient number, since it is larger than the sum of its proper divisors (264136).

528266 is a wasteful number, since it uses less digits than its factorization.

528266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264135.

The product of its digits is 5760, while the sum is 29.

The square root of 528266 is about 726.8190971624. The cubic root of 528266 is about 80.8383709854.

The spelling of 528266 in words is "five hundred twenty-eight thousand, two hundred sixty-six".