561533822833 has 2 divisors, whose sum is σ = 561533822834. Its totient is φ = 561533822832.

The previous prime is 561533822819. The next prime is 561533822849. The reversal of 561533822833 is 338228335165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 304861892449 + 256671930384 = 552143^2 + 506628^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561533822833 is a prime.

It is not a weakly prime, because it can be changed into another prime (561533822033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280766911416 + 280766911417.

It is an arithmetic number, because the mean of its divisors is an integer number (280766911417).

Almost surely, 2^561533822833 is an apocalyptic number.

It is an amenable number.

561533822833 is a deficient number, since it is larger than the sum of its proper divisors (1).

561533822833 is an equidigital number, since it uses as much as digits as its factorization.

561533822833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3110400, while the sum is 49.

The spelling of 561533822833 in words is "five hundred sixty-one billion, five hundred thirty-three million, eight hundred twenty-two thousand, eight hundred thirty-three".