550603530321 has 32 divisors (see below), whose sum is σ = 828684337152. Its totient is φ = 322647589440.

The previous prime is 550603530317. The next prime is 550603530341. The reversal of 550603530321 is 123035306055.

It is not a de Polignac number, because 550603530321 - 2² = 550603530317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550603530311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1176265 + ... + 1576326.

It is an arithmetic number, because the mean of its divisors is an integer number (25896385536).

Almost surely, 2^550603530321 is an apocalyptic number.

It is an amenable number.

550603530321 is a deficient number, since it is larger than the sum of its proper divisors (278080806831).

550603530321 is a wasteful number, since it uses less digits than its factorization.

550603530321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752853.

The product of its (nonzero) digits is 40500, while the sum is 33.

Adding to 550603530321 its reverse (123035306055), we get a palindrome (673638836376).

The spelling of 550603530321 in words is "five hundred fifty billion, six hundred three million, five hundred thirty thousand, three hundred twenty-one".