63521652 has 24 divisors (see below), whose sum is σ = 148532832. Its totient is φ = 21128800.

The previous prime is 63521599. The next prime is 63521663. The reversal of 63521652 is 25612536.

63521652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502 + ... + 11282.

It is an arithmetic number, because the mean of its divisors is an integer number (6188868).

Almost surely, 2^63521652 is an apocalyptic number.

It is an amenable number.

63521652 is an abundant number, since it is smaller than the sum of its proper divisors (85011180).

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

63521652 is a wasteful number, since it uses less digits than its factorization.

63521652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11279 (or 11277 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 63521652 is about 7970.0471767738. The cubic root of 63521652 is about 399.0009484842. Note that the first 3 decimals are identical.

The spelling of 63521652 in words is "sixty-three million, five hundred twenty-one thousand, six hundred fifty-two".