63120556 has 24 divisors (see below), whose sum is σ = 116421984. Its totient is φ = 29884800.

The previous prime is 63120529. The next prime is 63120571. The reversal of 63120556 is 65502136.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5896 + ... + 12688.

It is an arithmetic number, because the mean of its divisors is an integer number (4850916).

Almost surely, 2^63120556 is an apocalyptic number.

It is an amenable number.

63120556 is a deficient number, since it is larger than the sum of its proper divisors (53301428).

63120556 is a wasteful number, since it uses less digits than its factorization.

63120556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6921 (or 6919 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 63120556 is about 7944.8446177380. The cubic root of 63120556 is about 398.1593681777.

The spelling of 63120556 in words is "sixty-three million, one hundred twenty thousand, five hundred fifty-six".