550561220522 has 8 divisors (see below), whose sum is σ = 825851941572. Its totient is φ = 275277240000.

The previous prime is 550561220513. The next prime is 550561220543. The reversal of 550561220522 is 225022165055.

It can be written as a sum of positive squares in 2 ways, for example, as 541726912441 + 8834308081 = 736021^2 + 93991^2 .

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

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, 1475729 + ... + 1810772.

Almost surely, 2^550561220522 is an apocalyptic number.

550561220522 is a deficient number, since it is larger than the sum of its proper divisors (275290721050).

550561220522 is a wasteful number, since it uses less digits than its factorization.

550561220522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3370264.

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 550561220522 its reverse (225022165055), we get a palindrome (775583385577).

The spelling of 550561220522 in words is "five hundred fifty billion, five hundred sixty-one million, two hundred twenty thousand, five hundred twenty-two".