528261 has 4 divisors (see below), whose sum is σ = 704352. Its totient is φ = 352172.

The previous prime is 528247. The next prime is 528263. The reversal of 528261 is 162825.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 528261 - 2⁶ = 528197 is a prime.

It is a D-number.

It is a congruent 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 in 3 ways as a sum of consecutive naturals, for example, 88041 + ... + 88046.

It is an arithmetic number, because the mean of its divisors is an integer number (176088).

2⁵²⁸²⁶¹ is an apocalyptic number.

It is an amenable number.

528261 is a deficient number, since it is larger than the sum of its proper divisors (176091).

528261 is a wasteful number, since it uses less digits than its factorization.

528261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176090.

The product of its digits is 960, while the sum is 24.

The square root of 528261 is about 726.8156575088. The cubic root of 528261 is about 80.8381159414.

The spelling of 528261 in words is "five hundred twenty-eight thousand, two hundred sixty-one".