528670561 has 2 divisors, whose sum is σ = 528670562. Its totient is φ = 528670560.

The previous prime is 528670553. The next prime is 528670589. The reversal of 528670561 is 165076825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 474368400 + 54302161 = 21780^2 + 7369^2 .

It is a cyclic number.

It is not a de Polignac number, because 528670561 - 2³ = 528670553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (528670361) 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 as a sum of consecutive naturals, namely, 264335280 + 264335281.

It is an arithmetic number, because the mean of its divisors is an integer number (264335281).

Almost surely, 2^528670561 is an apocalyptic number.

It is an amenable number.

528670561 is a deficient number, since it is larger than the sum of its proper divisors (1).

528670561 is an equidigital number, since it uses as much as digits as its factorization.

528670561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 528670561 is about 22992.8371672571. The cubic root of 528670561 is about 808.5900182111.

The spelling of 528670561 in words is "five hundred twenty-eight million, six hundred seventy thousand, five hundred sixty-one".