55051144 has 16 divisors (see below), whose sum is σ = 107709120. Its totient is φ = 26328720.

The previous prime is 55051123. The next prime is 55051159. The reversal of 55051144 is 44115055.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149412 + ... + 149779.

It is an arithmetic number, because the mean of its divisors is an integer number (6731820).

Almost surely, 2^55051144 is an apocalyptic number.

It is an amenable number.

55051144 is a deficient number, since it is larger than the sum of its proper divisors (52657976).

55051144 is a wasteful number, since it uses less digits than its factorization.

55051144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299220 (or 299216 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 55051144 is about 7419.6458136491. The cubic root of 55051144 is about 380.4130872546.

Adding to 55051144 its reverse (44115055), we get a palindrome (99166199).

The spelling of 55051144 in words is "fifty-five million, fifty-one thousand, one hundred forty-four".