528508241 has 2 divisors, whose sum is σ = 528508242. Its totient is φ = 528508240.

The previous prime is 528508217. The next prime is 528508249. The reversal of 528508241 is 142805825.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519657616 + 8850625 = 22796^2 + 2975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-528508241 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (528508249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264254120 + 264254121.

It is an arithmetic number, because the mean of its divisors is an integer number (264254121).

Almost surely, 2^528508241 is an apocalyptic number.

It is an amenable number.

528508241 is a deficient number, since it is larger than the sum of its proper divisors (1).

528508241 is an equidigital number, since it uses as much as digits as its factorization.

528508241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 528508241 is about 22989.3071013461. The cubic root of 528508241 is about 808.5072547811.

The spelling of 528508241 in words is "five hundred twenty-eight million, five hundred eight thousand, two hundred forty-one".