524065561 has 2 divisors, whose sum is σ = 524065562. Its totient is φ = 524065560.

The previous prime is 524065559. The next prime is 524065573. The reversal of 524065561 is 165560425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 522579600 + 1485961 = 22860^2 + 1219^2 .

It is a cyclic number.

It is not a de Polignac number, because 524065561 - 2¹ = 524065559 is a prime.

Together with 524065559, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (524065541) 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, 262032780 + 262032781.

It is an arithmetic number, because the mean of its divisors is an integer number (262032781).

Almost surely, 2^524065561 is an apocalyptic number.

It is an amenable number.

524065561 is a deficient number, since it is larger than the sum of its proper divisors (1).

524065561 is an equidigital number, since it uses as much as digits as its factorization.

524065561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 524065561 is about 22892.4782625211. The cubic root of 524065561 is about 806.2354195148.

The spelling of 524065561 in words is "five hundred twenty-four million, sixty-five thousand, five hundred sixty-one".