55441189 has 4 divisors (see below), whose sum is σ = 55652256. Its totient is φ = 55230124.

The previous prime is 55441181. The next prime is 55441213. The reversal of 55441189 is 98114455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98114455 = 5 ⋅19622891.

It is a cyclic number.

It is not a de Polignac number, because 55441189 - 2³ = 55441181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55441181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105139 + ... + 105664.

It is an arithmetic number, because the mean of its divisors is an integer number (13913064).

Almost surely, 2^55441189 is an apocalyptic number.

It is an amenable number.

55441189 is a deficient number, since it is larger than the sum of its proper divisors (211067).

55441189 is a wasteful number, since it uses less digits than its factorization.

55441189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211066.

The product of its digits is 28800, while the sum is 37.

The square root of 55441189 is about 7445.8840307918. The cubic root of 55441189 is about 381.3094002583.

The spelling of 55441189 in words is "fifty-five million, four hundred forty-one thousand, one hundred eighty-nine".