54782189 has 16 divisors (see below), whose sum is σ = 70657920. Its totient is φ = 41213760.

The previous prime is 54782183. The next prime is 54782207. The reversal of 54782189 is 98128745.

It is not a de Polignac number, because 54782189 - 2⁴ = 54782173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54782183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10034 + ... + 14499.

It is an arithmetic number, because the mean of its divisors is an integer number (4416120).

Almost surely, 2^54782189 is an apocalyptic number.

It is an amenable number.

54782189 is a deficient number, since it is larger than the sum of its proper divisors (15875731).

54782189 is a wasteful number, since it uses less digits than its factorization.

54782189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24580.

The product of its digits is 161280, while the sum is 44.

The square root of 54782189 is about 7401.4991049111. The cubic root of 54782189 is about 379.7925668431.

It can be divided in two parts, 5478 and 2189, that added together give a palindrome (7667).

The spelling of 54782189 in words is "fifty-four million, seven hundred eighty-two thousand, one hundred eighty-nine".