1563065473 has 2 divisors, whose sum is σ = 1563065474. Its totient is φ = 1563065472.

The previous prime is 1563065431. The next prime is 1563065587. The reversal of 1563065473 is 3745603651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1477095489 + 85969984 = 38433^2 + 9272^2 .

It is a cyclic number.

It is not a de Polignac number, because 1563065473 - 2⁹ = 1563064961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1563065173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781532736 + 781532737.

It is an arithmetic number, because the mean of its divisors is an integer number (781532737).

Almost surely, 2^1563065473 is an apocalyptic number.

It is an amenable number.

1563065473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1563065473 is an equidigital number, since it uses as much as digits as its factorization.

1563065473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 40.

The square root of 1563065473 is about 39535.6228356150. The cubic root of 1563065473 is about 1160.5371751551.

The spelling of 1563065473 in words is "one billion, five hundred sixty-three million, sixty-five thousand, four hundred seventy-three".