550525200121 has 8 divisors (see below), whose sum is σ = 592982774720. Its totient is φ = 508083265872.

The previous prime is 550525200059. The next prime is 550525200167. The reversal of 550525200121 is 121002525055.

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

It is not a de Polignac number, because 550525200121 - 2³¹ = 548377716473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550525200121.

It is not an unprimeable number, because it can be changed into a prime (550525200191) 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, 3836925 + ... + 3977818.

It is an arithmetic number, because the mean of its divisors is an integer number (74122846840).

Almost surely, 2^550525200121 is an apocalyptic number.

It is an amenable number.

550525200121 is a deficient number, since it is larger than the sum of its proper divisors (42457574599).

550525200121 is a wasteful number, since it uses less digits than its factorization.

550525200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7820175.

The product of its (nonzero) digits is 5000, while the sum is 28.

Adding to 550525200121 its reverse (121002525055), we get a palindrome (671527725176).

The spelling of 550525200121 in words is "five hundred fifty billion, five hundred twenty-five million, two hundred thousand, one hundred twenty-one".