528257 has 4 divisors (see below), whose sum is σ = 556080. Its totient is φ = 500436.

The previous prime is 528247. The next prime is 528263. The reversal of 528257 is 752825.

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 528257 - 2⁸ = 528001 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 528257.

It is not an unprimeable number, because it can be changed into a prime (528217) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13883 + ... + 13920.

It is an arithmetic number, because the mean of its divisors is an integer number (139020).

2⁵²⁸²⁵⁷ is an apocalyptic number.

It is an amenable number.

528257 is a deficient number, since it is larger than the sum of its proper divisors (27823).

528257 is a wasteful number, since it uses less digits than its factorization.

528257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27822.

The product of its digits is 5600, while the sum is 29.

The square root of 528257 is about 726.8129057742. The cubic root of 528257 is about 80.8379119051.

The spelling of 528257 in words is "five hundred twenty-eight thousand, two hundred fifty-seven".