573998561 has 2 divisors, whose sum is σ = 573998562. Its totient is φ = 573998560.

The previous prime is 573998549. The next prime is 573998651. The reversal of 573998561 is 165899375.

Together with next prime (573998651) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 370793536 + 203205025 = 19256^2 + 14255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-573998561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (573992561) 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, 286999280 + 286999281.

It is an arithmetic number, because the mean of its divisors is an integer number (286999281).

Almost surely, 2^573998561 is an apocalyptic number.

It is an amenable number.

573998561 is a deficient number, since it is larger than the sum of its proper divisors (1).

573998561 is an equidigital number, since it uses as much as digits as its factorization.

573998561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2041200, while the sum is 53.

The square root of 573998561 is about 23958.2670700533. The cubic root of 573998561 is about 831.0687162215.

The spelling of 573998561 in words is "five hundred seventy-three million, nine hundred ninety-eight thousand, five hundred sixty-one".