550224402321 has 16 divisors (see below), whose sum is σ = 847404427968. Its totient is φ = 313853491200.

The previous prime is 550224402271. The next prime is 550224402331. The reversal of 550224402321 is 123204422055.

It is not a de Polignac number, because 550224402321 - 2¹¹ = 550224400273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550224402331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490395520 + ... + 490396641.

It is an arithmetic number, because the mean of its divisors is an integer number (52962776748).

Almost surely, 2^550224402321 is an apocalyptic number.

550224402321 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

550224402321 is a deficient number, since it is larger than the sum of its proper divisors (297180025647).

550224402321 is a wasteful number, since it uses less digits than its factorization.

550224402321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980792192.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 550224402321 its reverse (123204422055), we get a palindrome (673428824376).

The spelling of 550224402321 in words is "five hundred fifty billion, two hundred twenty-four million, four hundred two thousand, three hundred twenty-one".