55315444 has 12 divisors (see below), whose sum is σ = 99418564. Its totient is φ = 26910144.

The previous prime is 55315427. The next prime is 55315451. The reversal of 55315444 is 44451355.

It is a happy number.

55315444 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 2 ways, for example, as 38192400 + 17123044 = 6180^2 + 4138^2 .

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 3 ways as a sum of consecutive naturals, for example, 186729 + ... + 187024.

Almost surely, 2^55315444 is an apocalyptic number.

It is an amenable number.

55315444 is a deficient number, since it is larger than the sum of its proper divisors (44103120).

55315444 is a wasteful number, since it uses less digits than its factorization.

55315444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373794 (or 373792 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 55315444 is about 7437.4353106430. The cubic root of 55315444 is about 381.0209020803.

Adding to 55315444 its reverse (44451355), we get a palindrome (99766799).

The spelling of 55315444 in words is "fifty-five million, three hundred fifteen thousand, four hundred forty-four".