563821457 has 2 divisors, whose sum is σ = 563821458. Its totient is φ = 563821456.

The previous prime is 563821421. The next prime is 563821477. The reversal of 563821457 is 754128365.

563821457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395055376 + 168766081 = 19876^2 + 12991^2 .

It is a cyclic number.

It is not a de Polignac number, because 563821457 - 2¹⁸ = 563559313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (563821477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281910728 + 281910729.

It is an arithmetic number, because the mean of its divisors is an integer number (281910729).

Almost surely, 2^563821457 is an apocalyptic number.

It is an amenable number.

563821457 is a deficient number, since it is larger than the sum of its proper divisors (1).

563821457 is an equidigital number, since it uses as much as digits as its factorization.

563821457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 41.

The square root of 563821457 is about 23744.9248682745. The cubic root of 563821457 is about 826.1277296234.

The spelling of 563821457 in words is "five hundred sixty-three million, eight hundred twenty-one thousand, four hundred fifty-seven".