320500063 has 8 divisors (see below), whose sum is σ = 351667008. Its totient is φ = 290263584.

The previous prime is 320500051. The next prime is 320500069. The reversal of 320500063 is 360005023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320500063 - 2¹⁷ = 320368991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320500063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320500069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231895 + ... + 233272.

It is an arithmetic number, because the mean of its divisors is an integer number (43958376).

Almost surely, 2^320500063 is an apocalyptic number.

320500063 is a deficient number, since it is larger than the sum of its proper divisors (31166945).

320500063 is a wasteful number, since it uses less digits than its factorization.

320500063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465233.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 320500063 is about 17902.5155494975. The cubic root of 320500063 is about 684.3464831164.

Adding to 320500063 its reverse (360005023), we get a palindrome (680505086).

The spelling of 320500063 in words is "three hundred twenty million, five hundred thousand, sixty-three".