521068441 has 2 divisors, whose sum is σ = 521068442. Its totient is φ = 521068440.

The previous prime is 521068423. The next prime is 521068469. The reversal of 521068441 is 144860125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 520798041 + 270400 = 22821^2 + 520^2 .

It is a cyclic number.

It is not a de Polignac number, because 521068441 - 2¹³ = 521060249 is a prime.

It is not a weakly prime, because it can be changed into another prime (521068741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260534220 + 260534221.

It is an arithmetic number, because the mean of its divisors is an integer number (260534221).

Almost surely, 2^521068441 is an apocalyptic number.

It is an amenable number.

521068441 is a deficient number, since it is larger than the sum of its proper divisors (1).

521068441 is an equidigital number, since it uses as much as digits as its factorization.

521068441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 521068441 is about 22826.9235991187. The cubic root of 521068441 is about 804.6955324031.

The spelling of 521068441 in words is "five hundred twenty-one million, sixty-eight thousand, four hundred forty-one".