55430244 has 42 divisors (see below), whose sum is σ = 145445510. Its totient is φ = 18475776.

The previous prime is 55430233. The next prime is 55430257. The reversal of 55430244 is 44203455.

55430244 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., 53144100 + 2286144 = 7290^2 + 1512^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 13 ways as a sum of consecutive naturals, for example, 6589 + ... + 12420.

Almost surely, 2^55430244 is an apocalyptic number.

55430244 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

55430244 is an abundant number, since it is smaller than the sum of its proper divisors (90015266).

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

55430244 is a wasteful number, since it uses less digits than its factorization.

55430244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19031 (or 19014 counting only the distinct ones).

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

The square root of 55430244 is about 7445.1490247006. The cubic root of 55430244 is about 381.2843063638.

Adding to 55430244 its reverse (44203455), we get a palindrome (99633699).

The spelling of 55430244 in words is "fifty-five million, four hundred thirty thousand, two hundred forty-four".