485699561 has 2 divisors, whose sum is σ = 485699562. Its totient is φ = 485699560.

The previous prime is 485699477. The next prime is 485699567. The reversal of 485699561 is 165996584.

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., 467381161 + 18318400 = 21619^2 + 4280^2 .

It is a cyclic number.

It is not a de Polignac number, because 485699561 - 2¹⁰ = 485698537 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 (485699567) 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, 242849780 + 242849781.

It is an arithmetic number, because the mean of its divisors is an integer number (242849781).

Almost surely, 2^485699561 is an apocalyptic number.

It is an amenable number.

485699561 is a deficient number, since it is larger than the sum of its proper divisors (1).

485699561 is an equidigital number, since it uses as much as digits as its factorization.

485699561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2332800, while the sum is 53.

The square root of 485699561 is about 22038.5925367297. The cubic root of 485699561 is about 786.0603739772.

The spelling of 485699561 in words is "four hundred eighty-five million, six hundred ninety-nine thousand, five hundred sixty-one".