54353221 has 8 divisors (see below), whose sum is σ = 60553080. Its totient is φ = 48441792.

The previous prime is 54353183. The next prime is 54353227. The reversal of 54353221 is 12235345.

It can be written as a sum of positive squares in 4 ways, for example, as 902500 + 53450721 = 950^2 + 7311^2 .

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 54353221 - 2⁷ = 54353093 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 (54353227) 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, 71710 + ... + 72463.

It is an arithmetic number, because the mean of its divisors is an integer number (7569135).

Almost surely, 2^54353221 is an apocalyptic number.

It is an amenable number.

54353221 is a deficient number, since it is larger than the sum of its proper divisors (6199859).

54353221 is a wasteful number, since it uses less digits than its factorization.

54353221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144215.

The product of its digits is 3600, while the sum is 25.

The square root of 54353221 is about 7372.4636994698. The cubic root of 54353221 is about 378.7986552459.

Adding to 54353221 its reverse (12235345), we get a palindrome (66588566).

It can be divided in two parts, 543 and 53221, that multiplied together give a triangular number (28899003 = T₇₆₀₂).

The spelling of 54353221 in words is "fifty-four million, three hundred fifty-three thousand, two hundred twenty-one".