63315380 has 12 divisors (see below), whose sum is σ = 132962340. Its totient is φ = 25326144.

The previous prime is 63315379. The next prime is 63315383. The reversal of 63315380 is 8351336.

It can be written as a sum of positive squares in 2 ways, for example, as 43191184 + 20124196 = 6572^2 + 4486^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63315383) 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, 1582865 + ... + 1582904.

It is an arithmetic number, because the mean of its divisors is an integer number (11080195).

Almost surely, 2^63315380 is an apocalyptic number.

It is an amenable number.

63315380 is an abundant number, since it is smaller than the sum of its proper divisors (69646960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63315380 is a wasteful number, since it uses less digits than its factorization.

63315380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3165778 (or 3165776 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 63315380 is about 7957.0962040181. The cubic root of 63315380 is about 398.5685921222.

It can be divided in two parts, 6331 and 5380, that added together give a palindrome (11711).

The spelling of 63315380 in words is "sixty-three million, three hundred fifteen thousand, three hundred eighty".