63564612 has 12 divisors (see below), whose sum is σ = 148317456. Its totient is φ = 21188200.

The previous prime is 63564593. The next prime is 63564619. The reversal of 63564612 is 21646536.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (63564619) 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, 2648514 + ... + 2648537.

It is an arithmetic number, because the mean of its divisors is an integer number (12359788).

Almost surely, 2^63564612 is an apocalyptic number.

It is an amenable number.

63564612 is an abundant number, since it is smaller than the sum of its proper divisors (84752844).

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

63564612 is a wasteful number, since it uses less digits than its factorization.

63564612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5297058 (or 5297056 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 63564612 is about 7972.7418119490. The cubic root of 63564612 is about 399.0908769704.

The spelling of 63564612 in words is "sixty-three million, five hundred sixty-four thousand, six hundred twelve".