563550551 has 2 divisors, whose sum is σ = 563550552. Its totient is φ = 563550550.

The previous prime is 563550521. The next prime is 563550557. The reversal of 563550551 is 155055365.

563550551 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-563550551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (563550557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281775275 + 281775276.

It is an arithmetic number, because the mean of its divisors is an integer number (281775276).

Almost surely, 2^563550551 is an apocalyptic number.

563550551 is a deficient number, since it is larger than the sum of its proper divisors (1).

563550551 is an equidigital number, since it uses as much as digits as its factorization.

563550551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56250, while the sum is 35.

The square root of 563550551 is about 23739.2196796778. The cubic root of 563550551 is about 825.9953952884.

The spelling of 563550551 in words is "five hundred sixty-three million, five hundred fifty thousand, five hundred fifty-one".