63155856 has 20 divisors (see below), whose sum is σ = 163152752. Its totient is φ = 21051936.

The previous prime is 63155843. The next prime is 63155903. The reversal of 63155856 is 65855136.

63155856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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 3 ways as a sum of consecutive naturals, for example, 657826 + ... + 657921.

Almost surely, 2^63155856 is an apocalyptic number.

It is an amenable number.

63155856 is an abundant number, since it is smaller than the sum of its proper divisors (99996896).

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

63155856 is a wasteful number, since it uses less digits than its factorization.

63155856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315758 (or 1315752 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

The square root of 63155856 is about 7947.0658736417. The cubic root of 63155856 is about 398.2335775285.

The spelling of 63155856 in words is "sixty-three million, one hundred fifty-five thousand, eight hundred fifty-six".