55344432 has 120 divisors (see below), whose sum is σ = 169471792. Its totient is φ = 15459840.

The previous prime is 55344409. The next prime is 55344437. The reversal of 55344432 is 23444355.

55344432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55344432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55344437) 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 23 ways as a sum of consecutive naturals, for example, 75138 + ... + 75870.

Almost surely, 2^55344432 is an apocalyptic number.

55344432 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55344432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84735896).

55344432 is an abundant number, since it is smaller than the sum of its proper divisors (114127360).

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

55344432 is a wasteful number, since it uses less digits than its factorization.

55344432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779 (or 762 counting only the distinct ones).

The product of its digits is 28800, while the sum is 30.

The square root of 55344432 is about 7439.3838454539. The cubic root of 55344432 is about 381.0874483242.

Adding to 55344432 its reverse (23444355), we get a palindrome (78788787).

The spelling of 55344432 in words is "fifty-five million, three hundred forty-four thousand, four hundred thirty-two".