528393241 has 4 divisors (see below), whose sum is σ = 533840692. Its totient is φ = 522945792.

The previous prime is 528393181. The next prime is 528393293. The reversal of 528393241 is 142393825.

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

It can be written as a sum of positive squares in 2 ways, for example, as 147987225 + 380406016 = 12165^2 + 19504^2 .

It is a cyclic number.

It is not a de Polignac number, because 528393241 - 2¹⁹ = 527868953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 528393241.

It is not an unprimeable number, because it can be changed into a prime (528394241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2723580 + ... + 2723773.

It is an arithmetic number, because the mean of its divisors is an integer number (133460173).

Almost surely, 2^528393241 is an apocalyptic number.

It is an amenable number.

528393241 is a deficient number, since it is larger than the sum of its proper divisors (5447451).

528393241 is an equidigital number, since it uses as much as digits as its factorization.

528393241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5447450.

The product of its digits is 51840, while the sum is 37.

The square root of 528393241 is about 22986.8058024598. The cubic root of 528393241 is about 808.4486085314.

The spelling of 528393241 in words is "five hundred twenty-eight million, three hundred ninety-three thousand, two hundred forty-one".