63803280553 has 2 divisors, whose sum is σ = 63803280554. Its totient is φ = 63803280552.

The previous prime is 63803280481. The next prime is 63803280647. The reversal of 63803280553 is 35508230836.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61678715904 + 2124564649 = 248352^2 + 46093^2 .

It is a cyclic number.

It is not a de Polignac number, because 63803280553 - 2⁹ = 63803280041 is a prime.

It is not a weakly prime, because it can be changed into another prime (63803287553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31901640276 + 31901640277.

It is an arithmetic number, because the mean of its divisors is an integer number (31901640277).

Almost surely, 2^63803280553 is an apocalyptic number.

It is an amenable number.

63803280553 is a deficient number, since it is larger than the sum of its proper divisors (1).

63803280553 is an equidigital number, since it uses as much as digits as its factorization.

63803280553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 63803280553 in words is "sixty-three billion, eight hundred three million, two hundred eighty thousand, five hundred fifty-three".