63508223 has 4 divisors (see below), whose sum is σ = 63898008. Its totient is φ = 63118440.

The previous prime is 63508217. The next prime is 63508261. The reversal of 63508223 is 32280536.

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 63508223 - 2²⁰ = 62459647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63508273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194648 + ... + 194973.

It is an arithmetic number, because the mean of its divisors is an integer number (15974502).

Almost surely, 2^63508223 is an apocalyptic number.

63508223 is a deficient number, since it is larger than the sum of its proper divisors (389785).

63508223 is a wasteful number, since it uses less digits than its factorization.

63508223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389784.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 63508223 is about 7969.2046654607. The cubic root of 63508223 is about 398.9728291412.

Adding to 63508223 its reverse (32280536), we get a palindrome (95788759).

The spelling of 63508223 in words is "sixty-three million, five hundred eight thousand, two hundred twenty-three".