63506463 has 4 divisors (see below), whose sum is σ = 84675288. Its totient is φ = 42337640.

The previous prime is 63506453. The next prime is 63506497. The reversal of 63506463 is 36460536.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63506463 - 2⁸ = 63506207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63506413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10584408 + ... + 10584413.

It is an arithmetic number, because the mean of its divisors is an integer number (21168822).

Almost surely, 2^63506463 is an apocalyptic number.

63506463 is a deficient number, since it is larger than the sum of its proper divisors (21168825).

63506463 is a wasteful number, since it uses less digits than its factorization.

63506463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21168824.

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 63506463 is about 7969.0942396235. The cubic root of 63506463 is about 398.9691435362.

Adding to 63506463 its reverse (36460536), we get a palindrome (99966999).

The spelling of 63506463 in words is "sixty-three million, five hundred six thousand, four hundred sixty-three".