576065561 has 2 divisors, whose sum is σ = 576065562. Its totient is φ = 576065560.

The previous prime is 576065537. The next prime is 576065563. The reversal of 576065561 is 165560675.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 573889936 + 2175625 = 23956^2 + 1475^2 .

It is a cyclic number.

It is not a de Polignac number, because 576065561 - 2²² = 571871257 is a prime.

Together with 576065563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (576065563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288032780 + 288032781.

It is an arithmetic number, because the mean of its divisors is an integer number (288032781).

Almost surely, 2^576065561 is an apocalyptic number.

It is an amenable number.

576065561 is a deficient number, since it is larger than the sum of its proper divisors (1).

576065561 is an equidigital number, since it uses as much as digits as its factorization.

576065561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 576065561 is about 24001.3658153031. The cubic root of 576065561 is about 832.0650957027.

The spelling of 576065561 in words is "five hundred seventy-six million, sixty-five thousand, five hundred sixty-one".