55133184 has 88 divisors (see below), whose sum is σ = 149152608. Its totient is φ = 18104320.

The previous prime is 55133179. The next prime is 55133201. The reversal of 55133184 is 48133155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402364 + ... + 402500.

It is an arithmetic number, because the mean of its divisors is an integer number (1694916).

Almost surely, 2^55133184 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55133184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74576304).

55133184 is an abundant number, since it is smaller than the sum of its proper divisors (94019424).

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

55133184 is a wasteful number, since it uses less digits than its factorization.

55133184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 273 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 55133184 is about 7425.1723212327. The cubic root of 55133184 is about 380.6019637375.

The spelling of 55133184 in words is "fifty-five million, one hundred thirty-three thousand, one hundred eighty-four".