550411532221 has 8 divisors (see below), whose sum is σ = 559818012600. Its totient is φ = 541081218048.

The previous prime is 550411532191. The next prime is 550411532267. The reversal of 550411532221 is 122235114055.

550411532221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1463904121 + 548947628100 = 38261^2 + 740910^2 .

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 550411532221 - 2⁵ = 550411532189 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 (550411532291) 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, 19026976 + ... + 19055881.

It is an arithmetic number, because the mean of its divisors is an integer number (69977251575).

Almost surely, 2^550411532221 is an apocalyptic number.

It is an amenable number.

550411532221 is a deficient number, since it is larger than the sum of its proper divisors (9406480379).

550411532221 is a wasteful number, since it uses less digits than its factorization.

550411532221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38083103.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 550411532221 its reverse (122235114055), we get a palindrome (672646646276).

The spelling of 550411532221 in words is "five hundred fifty billion, four hundred eleven million, five hundred thirty-two thousand, two hundred twenty-one".