55743144 has 16 divisors (see below), whose sum is σ = 139357920. Its totient is φ = 18581040.

The previous prime is 55743139. The next prime is 55743151. The reversal of 55743144 is 44134755.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1161292 + ... + 1161339.

It is an arithmetic number, because the mean of its divisors is an integer number (8709870).

Almost surely, 2^55743144 is an apocalyptic number.

It is an amenable number.

55743144 is an abundant number, since it is smaller than the sum of its proper divisors (83614776).

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

55743144 is a wasteful number, since it uses less digits than its factorization.

55743144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322640 (or 2322636 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 55743144 is about 7466.1331357002. The cubic root of 55743144 is about 382.0004020353. Note that the first 3 decimals are identical.

Adding to 55743144 its reverse (44134755), we get a palindrome (99877899).

The spelling of 55743144 in words is "fifty-five million, seven hundred forty-three thousand, one hundred forty-four".