63685056 has 28 divisors (see below), whose sum is σ = 168500552. Its totient is φ = 21228288.

The previous prime is 63685051. The next prime is 63685057. The reversal of 63685056 is 65058636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63685051) 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, 165655 + ... + 166038.

Almost surely, 2^63685056 is an apocalyptic number.

It is an amenable number.

63685056 is an abundant number, since it is smaller than the sum of its proper divisors (104815496).

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

63685056 is a wasteful number, since it uses less digits than its factorization.

63685056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331708 (or 331698 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 63685056 is about 7980.2917239910. The cubic root of 63685056 is about 399.3427874372.

The spelling of 63685056 in words is "sixty-three million, six hundred eighty-five thousand, fifty-six".