63643152 has 80 divisors (see below), whose sum is σ = 171114048. Its totient is φ = 20367360.

The previous prime is 63643117. The next prime is 63643157. The reversal of 63643152 is 25134636.

It is not an unprimeable number, because it can be changed into a prime (63643157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143443 + ... + 143885.

Almost surely, 2^63643152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63643152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85557024).

63643152 is an abundant number, since it is smaller than the sum of its proper divisors (107470896).

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

63643152 is a wasteful number, since it uses less digits than its factorization.

63643152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568 (or 562 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 63643152 is about 7977.6658240365. The cubic root of 63643152 is about 399.2551806378.

Adding to 63643152 its reverse (25134636), we get a palindrome (88777788).

The spelling of 63643152 in words is "sixty-three million, six hundred forty-three thousand, one hundred fifty-two".