63725568 has 56 divisors (see below), whose sum is σ = 169990008. Its totient is φ = 21233664.

The previous prime is 63725567. The next prime is 63725593. The reversal of 63725568 is 86552736.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63725567) 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, 23280 + ... + 25872.

Almost surely, 2^63725568 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 63725568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84995004).

63725568 is an abundant number, since it is smaller than the sum of its proper divisors (106264440).

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

63725568 is an equidigital number, since it uses as much as digits as its factorization.

63725568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622 (or 2598 counting only the distinct ones).

The product of its digits is 302400, while the sum is 42.

The square root of 63725568 is about 7982.8295735284. The cubic root of 63725568 is about 399.4274475168.

The spelling of 63725568 in words is "sixty-three million, seven hundred twenty-five thousand, five hundred sixty-eight".