545501444 has 12 divisors (see below), whose sum is σ = 954993564. Its totient is φ = 272646144.

The previous prime is 545501443. The next prime is 545501459. The reversal of 545501444 is 444105545.

It can be written as a sum of positive squares in 2 ways, for example, as 398800900 + 146700544 = 19970^2 + 12112^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 545501444.

It is not an unprimeable number, because it can be changed into a prime (545501441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13757 + ... + 35780.

It is an arithmetic number, because the mean of its divisors is an integer number (79582797).

Almost surely, 2^545501444 is an apocalyptic number.

It is an amenable number.

545501444 is a deficient number, since it is larger than the sum of its proper divisors (409492120).

545501444 is a wasteful number, since it uses less digits than its factorization.

545501444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52294 (or 52292 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

The square root of 545501444 is about 23355.9723411379. The cubic root of 545501444 is about 817.0813570343.

Adding to 545501444 its reverse (444105545), we get a palindrome (989606989).

The spelling of 545501444 in words is "five hundred forty-five million, five hundred one thousand, four hundred forty-four".