63430005503 has 2 divisors, whose sum is σ = 63430005504. Its totient is φ = 63430005502.

The previous prime is 63430005491. The next prime is 63430005511. The reversal of 63430005503 is 30550003436.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63430005503 is a prime.

It is a super-2 number, since 2×63430005503² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63430005533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31715002751 + 31715002752.

It is an arithmetic number, because the mean of its divisors is an integer number (31715002752).

Almost surely, 2^63430005503 is an apocalyptic number.

63430005503 is a deficient number, since it is larger than the sum of its proper divisors (1).

63430005503 is an equidigital number, since it uses as much as digits as its factorization.

63430005503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 29.

Adding to 63430005503 its reverse (30550003436), we get a palindrome (93980008939).

The spelling of 63430005503 in words is "sixty-three billion, four hundred thirty million, five thousand, five hundred three".