55656648 has 48 divisors (see below), whose sum is σ = 153953280. Its totient is φ = 18156384.

The previous prime is 55656631. The next prime is 55656673. The reversal of 55656648 is 84665655.

It is a happy number.

55656648 is a `hidden beast` number, since 556 + 56 + 6 + 48 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4840 + ... + 11607.

It is an arithmetic number, because the mean of its divisors is an integer number (3207360).

Almost surely, 2^55656648 is an apocalyptic number.

It is an amenable number.

55656648 is an abundant number, since it is smaller than the sum of its proper divisors (98296632).

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

55656648 is a wasteful number, since it uses less digits than its factorization.

55656648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16506 (or 16499 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The square root of 55656648 is about 7460.3383301295. The cubic root of 55656648 is about 381.8027178647.

The spelling of 55656648 in words is "fifty-five million, six hundred fifty-six thousand, six hundred forty-eight".