550213323421 has 8 divisors (see below), whose sum is σ = 582674757120. Its totient is φ = 517762550208.

The previous prime is 550213323419. The next prime is 550213323503. The reversal of 550213323421 is 124323312055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550213323421 - 2¹ = 550213323419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550213327421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2558731 + ... + 2765416.

It is an arithmetic number, because the mean of its divisors is an integer number (72834344640).

Almost surely, 2^550213323421 is an apocalyptic number.

It is an amenable number.

550213323421 is a deficient number, since it is larger than the sum of its proper divisors (32461433699).

550213323421 is a wasteful number, since it uses less digits than its factorization.

550213323421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330243.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 550213323421 its reverse (124323312055), we get a palindrome (674536635476).

The spelling of 550213323421 in words is "five hundred fifty billion, two hundred thirteen million, three hundred twenty-three thousand, four hundred twenty-one".