63520012 has 24 divisors (see below), whose sum is σ = 113475600. Its totient is φ = 31105536.

The previous prime is 63519977. The next prime is 63520031. The reversal of 63520012 is 21002536.

It is a happy number.

63520012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 39439 + ... + 41017.

It is an arithmetic number, because the mean of its divisors is an integer number (4728150).

Almost surely, 2^63520012 is an apocalyptic number.

It is an amenable number.

63520012 is a deficient number, since it is larger than the sum of its proper divisors (49955588).

63520012 is a wasteful number, since it uses less digits than its factorization.

63520012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785 (or 1783 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 63520012 is about 7969.9442908969. The cubic root of 63520012 is about 398.9975146567.

Adding to 63520012 its reverse (21002536), we get a palindrome (84522548).

The spelling of 63520012 in words is "sixty-three million, five hundred twenty thousand, twelve".