554023321 has 2 divisors, whose sum is σ = 554023322. Its totient is φ = 554023320.

The previous prime is 554023307. The next prime is 554023343. The reversal of 554023321 is 123320455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 329023321 + 225000000 = 18139^2 + 15000^2 .

It is a cyclic number.

It is not a de Polignac number, because 554023321 - 2⁷ = 554023193 is a prime.

It is not a weakly prime, because it can be changed into another prime (554023391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277011660 + 277011661.

It is an arithmetic number, because the mean of its divisors is an integer number (277011661).

Almost surely, 2^554023321 is an apocalyptic number.

It is an amenable number.

554023321 is a deficient number, since it is larger than the sum of its proper divisors (1).

554023321 is an equidigital number, since it uses as much as digits as its factorization.

554023321 is an odious number, because the sum of its binary digits is odd.

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

The square root of 554023321 is about 23537.6999938397. The cubic root of 554023321 is about 821.3142325008.

Adding to 554023321 its reverse (123320455), we get a palindrome (677343776).

The spelling of 554023321 in words is "five hundred fifty-four million, twenty-three thousand, three hundred twenty-one".