63430551 has 6 divisors (see below), whose sum is σ = 91621920. Its totient is φ = 42287028.

The previous prime is 63430541. The next prime is 63430571. The reversal of 63430551 is 15503436.

It is not a de Polignac number, because 63430551 - 2¹⁷ = 63299479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63430501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3523911 + ... + 3523928.

It is an arithmetic number, because the mean of its divisors is an integer number (15270320).

Almost surely, 2^63430551 is an apocalyptic number.

63430551 is a deficient number, since it is larger than the sum of its proper divisors (28191369).

63430551 is a wasteful number, since it uses less digits than its factorization.

63430551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7047845 (or 7047842 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 63430551 is about 7964.3299153162. The cubic root of 63430551 is about 398.8101118419.

Adding to 63430551 its reverse (15503436), we get a palindrome (78933987).

The spelling of 63430551 in words is "sixty-three million, four hundred thirty thousand, five hundred fifty-one".