55533784 has 16 divisors (see below), whose sum is σ = 104242320. Its totient is φ = 27735840.

The previous prime is 55533773. The next prime is 55533787. The reversal of 55533784 is 48733555.

55533784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55533787) by changing a digit.

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, 4882 + ... + 11614.

It is an arithmetic number, because the mean of its divisors is an integer number (6515145).

Almost surely, 2^55533784 is an apocalyptic number.

It is an amenable number.

55533784 is a deficient number, since it is larger than the sum of its proper divisors (48708536).

55533784 is a wasteful number, since it uses less digits than its factorization.

55533784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770 (or 7766 counting only the distinct ones).

The product of its digits is 252000, while the sum is 40.

The square root of 55533784 is about 7452.0993015391. The cubic root of 55533784 is about 381.5215632524.

The spelling of 55533784 in words is "fifty-five million, five hundred thirty-three thousand, seven hundred eighty-four".