63538073 has 2 divisors, whose sum is σ = 63538074. Its totient is φ = 63538072.

The previous prime is 63538067. The next prime is 63538091. The reversal of 63538073 is 37083536.

63538073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54125449 + 9412624 = 7357^2 + 3068^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63538073 is a prime.

It is not a weakly prime, because it can be changed into another prime (63538273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31769036 + 31769037.

It is an arithmetic number, because the mean of its divisors is an integer number (31769037).

Almost surely, 2^63538073 is an apocalyptic number.

It is an amenable number.

63538073 is a deficient number, since it is larger than the sum of its proper divisors (1).

63538073 is an equidigital number, since it uses as much as digits as its factorization.

63538073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 63538073 is about 7971.0772797659. The cubic root of 63538073 is about 399.0353274709.

The spelling of 63538073 in words is "sixty-three million, five hundred thirty-eight thousand, seventy-three".