55044432 has 30 divisors (see below), whose sum is σ = 154048362. Its totient is φ = 18348096.

The previous prime is 55044413. The next prime is 55044433. The reversal of 55044432 is 23444055.

55044432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 51494976 + 3549456 = 7176^2 + 1884^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55044396 and 55044405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55044433) 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 5 ways as a sum of consecutive naturals, for example, 190983 + ... + 191270.

Almost surely, 2^55044432 is an apocalyptic number.

It is an amenable number.

55044432 is an abundant number, since it is smaller than the sum of its proper divisors (99003930).

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

55044432 is a wasteful number, since it uses less digits than its factorization.

55044432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382267 (or 382258 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 55044432 is about 7419.1934871656. The cubic root of 55044432 is about 380.3976262594.

Adding to 55044432 its reverse (23444055), we get a palindrome (78488487).

The spelling of 55044432 in words is "fifty-five million, forty-four thousand, four hundred thirty-two".