63481556 has 12 divisors (see below), whose sum is σ = 112499520. Its totient is φ = 31338840.

The previous prime is 63481513. The next prime is 63481567. The reversal of 63481556 is 65518436.

63481556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63481556² = 8059815904362272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 100130 + ... + 100761.

It is an arithmetic number, because the mean of its divisors is an integer number (9374960).

Almost surely, 2^63481556 is an apocalyptic number.

It is an amenable number.

63481556 is a deficient number, since it is larger than the sum of its proper divisors (49017964).

63481556 is a wasteful number, since it uses less digits than its factorization.

63481556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200974 (or 200972 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 63481556 is about 7967.5313617205. The cubic root of 63481556 is about 398.9169786417.

The spelling of 63481556 in words is "sixty-three million, four hundred eighty-one thousand, five hundred fifty-six".