528481 has 4 divisors (see below), whose sum is σ = 530352. Its totient is φ = 526612.

The previous prime is 528469. The next prime is 528487. The reversal of 528481 is 184825.

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 528481 - 2¹⁵ = 495713 is a prime.

It is a super-2 number, since 2×528481² = 558584334722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

528481 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (528487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415 + ... + 1108.

It is an arithmetic number, because the mean of its divisors is an integer number (132588).

2⁵²⁸⁴⁸¹ is an apocalyptic number.

It is an amenable number.

528481 is a deficient number, since it is larger than the sum of its proper divisors (1871).

528481 is a wasteful number, since it uses less digits than its factorization.

528481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870.

The product of its digits is 2560, while the sum is 28.

The square root of 528481 is about 726.9669868708. The cubic root of 528481 is about 80.8493363528.

The spelling of 528481 in words is "five hundred twenty-eight thousand, four hundred eighty-one".