63663875 has 16 divisors (see below), whose sum is σ = 86677344. Its totient is φ = 46300000.

The previous prime is 63663871. The next prime is 63663883. The reversal of 63663875 is 57836636.

It is not a de Polignac number, because 63663875 - 2² = 63663871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63663871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21776 + ... + 24525.

It is an arithmetic number, because the mean of its divisors is an integer number (5417334).

Almost surely, 2^63663875 is an apocalyptic number.

63663875 is a deficient number, since it is larger than the sum of its proper divisors (23013469).

63663875 is a wasteful number, since it uses less digits than its factorization.

63663875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46327 (or 46317 counting only the distinct ones).

The product of its digits is 544320, while the sum is 44.

The square root of 63663875 is about 7978.9645318174. The cubic root of 63663875 is about 399.2985100822.

The spelling of 63663875 in words is "sixty-three million, six hundred sixty-three thousand, eight hundred seventy-five".