55646784 has 56 divisors (see below), whose sum is σ = 163596320. Its totient is φ = 18548352.

The previous prime is 55646777. The next prime is 55646827. The reversal of 55646784 is 48764655.

55646784 is a `hidden beast` number, since 5 + 564 + 6 + 7 + 84 = 666.

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, 14374 + ... + 17829.

Almost surely, 2^55646784 is an apocalyptic number.

55646784 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

55646784 is an abundant number, since it is smaller than the sum of its proper divisors (107949536).

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

55646784 is a wasteful number, since it uses less digits than its factorization.

55646784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32224 (or 32208 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 55646784 is about 7459.6772048126. The cubic root of 55646784 is about 381.7801609636.

The spelling of 55646784 in words is "fifty-five million, six hundred forty-six thousand, seven hundred eighty-four".