63553163 has 16 divisors (see below), whose sum is σ = 67791360. Its totient is φ = 59457024.

The previous prime is 63553159. The next prime is 63553169. The reversal of 63553163 is 36135536.

It is not a de Polignac number, because 63553163 - 2² = 63553159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63553169) 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, 329195 + ... + 329387.

It is an arithmetic number, because the mean of its divisors is an integer number (4236960).

Almost surely, 2^63553163 is an apocalyptic number.

63553163 is a deficient number, since it is larger than the sum of its proper divisors (4238197).

63553163 is a wasteful number, since it uses less digits than its factorization.

63553163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458.

The product of its digits is 24300, while the sum is 32.

The square root of 63553163 is about 7972.0237706620. The cubic root of 63553163 is about 399.0669146552.

Adding to 63553163 its reverse (36135536), we get a palindrome (99688699).

The spelling of 63553163 in words is "sixty-three million, five hundred fifty-three thousand, one hundred sixty-three".