55155884 has 24 divisors (see below), whose sum is σ = 110576928. Its totient is φ = 23581440.

The previous prime is 55155839. The next prime is 55155887. The reversal of 55155884 is 48855155.

55155884 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55155887) 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 7 ways as a sum of consecutive naturals, for example, 10772 + ... + 15044.

It is an arithmetic number, because the mean of its divisors is an integer number (4607372).

Almost surely, 2^55155884 is an apocalyptic number.

It is an amenable number.

55155884 is an abundant number, since it is smaller than the sum of its proper divisors (55421044).

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

55155884 is a wasteful number, since it uses less digits than its factorization.

55155884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4745 (or 4743 counting only the distinct ones).

The product of its digits is 160000, while the sum is 41.

The square root of 55155884 is about 7426.7007479769. The cubic root of 55155884 is about 380.6541916850.

The spelling of 55155884 in words is "fifty-five million, one hundred fifty-five thousand, eight hundred eighty-four".