550221233524 has 12 divisors (see below), whose sum is σ = 981054841284. Its totient is φ = 269919850304.

The previous prime is 550221233503. The next prime is 550221233531. The reversal of 550221233524 is 425332122055.

It can be written as a sum of positive squares in 2 ways, for example, as 434531456100 + 115689777424 = 659190^2 + 340132^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 550221233524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1297691377 + ... + 1297691800.

It is an arithmetic number, because the mean of its divisors is an integer number (81754570107).

Almost surely, 2^550221233524 is an apocalyptic number.

It is an amenable number.

550221233524 is a deficient number, since it is larger than the sum of its proper divisors (430833607760).

550221233524 is a wasteful number, since it uses less digits than its factorization.

550221233524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595383234 (or 2595383232 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 550221233524 its reverse (425332122055), we get a palindrome (975553355579).

The spelling of 550221233524 in words is "five hundred fifty billion, two hundred twenty-one million, two hundred thirty-three thousand, five hundred twenty-four".