55505044 has 36 divisors (see below), whose sum is σ = 113418144. Its totient is φ = 23698416.

The previous prime is 55505029. The next prime is 55505071. The reversal of 55505044 is 44050555.

55505044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

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 11 ways as a sum of consecutive naturals, for example, 98307 + ... + 98869.

It is an arithmetic number, because the mean of its divisors is an integer number (3150504).

Almost surely, 2^55505044 is an apocalyptic number.

It is an amenable number.

55505044 is an abundant number, since it is smaller than the sum of its proper divisors (57913100).

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

55505044 is a wasteful number, since it uses less digits than its factorization.

55505044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084 (or 1075 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 55505044 is about 7450.1707362986. The cubic root of 55505044 is about 381.4557365249.

Adding to 55505044 its reverse (44050555), we get a palindrome (99555599).

The spelling of 55505044 in words is "fifty-five million, five hundred five thousand, forty-four".