73085563 has 2 divisors, whose sum is σ = 73085564. Its totient is φ = 73085562.

The previous prime is 73085561. The next prime is 73085581. The reversal of 73085563 is 36558037.

It is a weak prime.

It is an emirp because it is prime and its reverse (36558037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73085563 - 2¹ = 73085561 is a prime.

Together with 73085561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (73085561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36542781 + 36542782.

It is an arithmetic number, because the mean of its divisors is an integer number (36542782).

Almost surely, 2^73085563 is an apocalyptic number.

73085563 is a deficient number, since it is larger than the sum of its proper divisors (1).

73085563 is an equidigital number, since it uses as much as digits as its factorization.

73085563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 73085563 is about 8549.0094747871. The cubic root of 73085563 is about 418.0971420938.

The spelling of 73085563 in words is "seventy-three million, eighty-five thousand, five hundred sixty-three".