55240244 has 18 divisors (see below), whose sum is σ = 100124934. Its totient is φ = 26666080.

The previous prime is 55240217. The next prime is 55240261. The reversal of 55240244 is 44204255.

55240244 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 3 ways, for example, as 302500 + 54937744 = 550^2 + 7412^2 .

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 4847 + ... + 11574.

Almost surely, 2^55240244 is an apocalyptic number.

It is an amenable number.

55240244 is a deficient number, since it is larger than the sum of its proper divisors (44884690).

55240244 is a wasteful number, since it uses less digits than its factorization.

55240244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16483 (or 16452 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 55240244 is about 7432.3780851084. The cubic root of 55240244 is about 380.8481608961.

Adding to 55240244 its reverse (44204255), we get a palindrome (99444499).

The spelling of 55240244 in words is "fifty-five million, two hundred forty thousand, two hundred forty-four".