55386784 has 24 divisors (see below), whose sum is σ = 110128788. Its totient is φ = 27417600.

The previous prime is 55386769. The next prime is 55386803. The reversal of 55386784 is 48768355.

It can be written as a sum of positive squares in 2 ways, for example, as 55175184 + 211600 = 7428^2 + 460^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5337 + ... + 11800.

Almost surely, 2^55386784 is an apocalyptic number.

It is an amenable number.

55386784 is a deficient number, since it is larger than the sum of its proper divisors (54742004).

55386784 is a wasteful number, since it uses less digits than its factorization.

55386784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17248 (or 17240 counting only the distinct ones).

The product of its digits is 806400, while the sum is 46.

The square root of 55386784 is about 7442.2297733945. The cubic root of 55386784 is about 381.1846318457.

The spelling of 55386784 in words is "fifty-five million, three hundred eighty-six thousand, seven hundred eighty-four".