55043361 has 32 divisors (see below), whose sum is σ = 87964800. Its totient is φ = 33903360.

The previous prime is 55043357. The next prime is 55043369. The reversal of 55043361 is 16334055.

55043361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55043361 - 2² = 55043357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (55043369) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 19725 + ... + 22341.

It is an arithmetic number, because the mean of its divisors is an integer number (2748900).

Almost surely, 2^55043361 is an apocalyptic number.

It is an amenable number.

55043361 is a deficient number, since it is larger than the sum of its proper divisors (32921439).

55043361 is a wasteful number, since it uses less digits than its factorization.

55043361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686 (or 2680 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 55043361 is about 7419.1213091578. The cubic root of 55043361 is about 380.3951591100.

The spelling of 55043361 in words is "fifty-five million, forty-three thousand, three hundred sixty-one".