554021444 has 6 divisors (see below), whose sum is σ = 969537534. Its totient is φ = 277010720.

The previous prime is 554021441. The next prime is 554021471. The reversal of 554021444 is 444120455.

It can be written as a sum of positive squares in only one way, i.e., 355775044 + 198246400 = 18862^2 + 14080^2 .

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69252677 + ... + 69252684.

It is an arithmetic number, because the mean of its divisors is an integer number (161589589).

Almost surely, 2^554021444 is an apocalyptic number.

It is an amenable number.

554021444 is a deficient number, since it is larger than the sum of its proper divisors (415516090).

554021444 is a wasteful number, since it uses less digits than its factorization.

554021444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138505365 (or 138505363 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 554021444 is about 23537.6601216009. The cubic root of 554021444 is about 821.3133049776.

Adding to 554021444 its reverse (444120455), we get a palindrome (998141899).

The spelling of 554021444 in words is "five hundred fifty-four million, twenty-one thousand, four hundred forty-four".