54332221 has 8 divisors (see below), whose sum is σ = 58317624. Its totient is φ = 50434560.

The previous prime is 54332209. The next prime is 54332227. The reversal of 54332221 is 12223345.

It can be written as a sum of positive squares in 4 ways, for example, as 34351321 + 19980900 = 5861^2 + 4470^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54332221 - 2¹⁷ = 54201149 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 54332192 and 54332201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54332227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20650 + ... + 23131.

It is an arithmetic number, because the mean of its divisors is an integer number (7289703).

Almost surely, 2^54332221 is an apocalyptic number.

It is an amenable number.

54332221 is a deficient number, since it is larger than the sum of its proper divisors (3985403).

54332221 is a wasteful number, since it uses less digits than its factorization.

54332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43871.

The product of its digits is 1440, while the sum is 22.

The square root of 54332221 is about 7371.0393432677. The cubic root of 54332221 is about 378.7498645376.

Adding to 54332221 its reverse (12223345), we get a palindrome (66555566).

The spelling of 54332221 in words is "fifty-four million, three hundred thirty-two thousand, two hundred twenty-one".