4054433221 has 2 divisors, whose sum is σ = 4054433222. Its totient is φ = 4054433220.

The previous prime is 4054433197. The next prime is 4054433263. The reversal of 4054433221 is 1223344504.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4030472196 + 23961025 = 63486^2 + 4895^2 .

It is a cyclic number.

It is not a de Polignac number, because 4054433221 - 2¹⁵ = 4054400453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4054433221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4054433821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2027216610 + 2027216611.

It is an arithmetic number, because the mean of its divisors is an integer number (2027216611).

Almost surely, 2^4054433221 is an apocalyptic number.

It is an amenable number.

4054433221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4054433221 is an equidigital number, since it uses as much as digits as its factorization.

4054433221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 4054433221 is about 63674.4314540774. The cubic root of 4054433221 is about 1594.5692466637.

Adding to 4054433221 its reverse (1223344504), we get a palindrome (5277777725).

The spelling of 4054433221 in words is "four billion, fifty-four million, four hundred thirty-three thousand, two hundred twenty-one".