636523063 has 4 divisors (see below), whose sum is σ = 694388808. Its totient is φ = 578657320.

The previous prime is 636523039. The next prime is 636523081. The reversal of 636523063 is 360325636.

636523063 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 636523063 - 2²⁹ = 99652151 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 (636523033) 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, 28932856 + ... + 28932877.

It is an arithmetic number, because the mean of its divisors is an integer number (173597202).

Almost surely, 2^636523063 is an apocalyptic number.

636523063 is a deficient number, since it is larger than the sum of its proper divisors (57865745).

636523063 is a wasteful number, since it uses less digits than its factorization.

636523063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57865744.

The product of its (nonzero) digits is 58320, while the sum is 34.

The square root of 636523063 is about 25229.4086930312. The cubic root of 636523063 is about 860.2104510201.

Adding to 636523063 its reverse (360325636), we get a palindrome (996848699).

The spelling of 636523063 in words is "six hundred thirty-six million, five hundred twenty-three thousand, sixty-three".