63448520 has 64 divisors (see below), whose sum is σ = 149688000. Its totient is φ = 24172288.

The previous prime is 63448499. The next prime is 63448523. The reversal of 63448520 is 2584436.

It is not an unprimeable number, because it can be changed into a prime (63448523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95951 + ... + 96609.

It is an arithmetic number, because the mean of its divisors is an integer number (2338875).

Almost surely, 2^63448520 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 63448520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74844000).

63448520 is an abundant number, since it is smaller than the sum of its proper divisors (86239480).

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

63448520 is a wasteful number, since it uses less digits than its factorization.

63448520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 63448520 is about 7965.4579278281. The cubic root of 63448520 is about 398.8477674205.

The spelling of 63448520 in words is "sixty-three million, four hundred forty-eight thousand, five hundred twenty".