63315564 has 24 divisors (see below), whose sum is σ = 159101040. Its totient is φ = 19481664.

The previous prime is 63315541. The next prime is 63315569. The reversal of 63315564 is 46551336.

It is not an unprimeable number, because it can be changed into a prime (63315569) 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, 202779 + ... + 203090.

It is an arithmetic number, because the mean of its divisors is an integer number (6629210).

Almost surely, 2^63315564 is an apocalyptic number.

It is an amenable number.

63315564 is an abundant number, since it is smaller than the sum of its proper divisors (95785476).

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

63315564 is a wasteful number, since it uses less digits than its factorization.

63315564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405889 (or 405887 counting only the distinct ones).

The product of its digits is 32400, while the sum is 33.

The square root of 63315564 is about 7957.1077660165. The cubic root of 63315564 is about 398.5689782134.

The spelling of 63315564 in words is "sixty-three million, three hundred fifteen thousand, five hundred sixty-four".