554021443 has 4 divisors (see below), whose sum is σ = 557550400. Its totient is φ = 550492488.

The previous prime is 554021441. The next prime is 554021471. The reversal of 554021443 is 344120455.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 554021443 - 2¹ = 554021441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (554021441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1764243 + ... + 1764556.

It is an arithmetic number, because the mean of its divisors is an integer number (139387600).

Almost surely, 2^554021443 is an apocalyptic number.

554021443 is a deficient number, since it is larger than the sum of its proper divisors (3528957).

554021443 is a wasteful number, since it uses less digits than its factorization.

554021443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3528956.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 554021443 is about 23537.6601003583. The cubic root of 554021443 is about 821.3133044834.

Adding to 554021443 its reverse (344120455), we get a palindrome (898141898).

The spelling of 554021443 in words is "five hundred fifty-four million, twenty-one thousand, four hundred forty-three".