9050055555121 has 6 divisors (see below), whose sum is σ = 10527615645810. Its totient is φ = 7757190475776.

The previous prime is 9050055555109. The next prime is 9050055555157. The reversal of 9050055555121 is 1215555500509.

It can be written as a sum of positive squares in only one way, i.e., 8282567423025 + 767488132096 = 2877945^2 + 876064^2 .

It is not a de Polignac number, because 9050055555121 - 2¹⁹ = 9050055030833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9050065555121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92347505616 + ... + 92347505713.

It is an arithmetic number, because the mean of its divisors is an integer number (1754602607635).

Almost surely, 2^{9050055555121} is an apocalyptic number.

It is an amenable number.

9050055555121 is a deficient number, since it is larger than the sum of its proper divisors (1477560090689).

9050055555121 is a wasteful number, since it uses less digits than its factorization.

9050055555121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184695011343 (or 184695011336 counting only the distinct ones).

The product of its (nonzero) digits is 281250, while the sum is 43.

The spelling of 9050055555121 in words is "nine trillion, fifty billion, fifty-five million, five hundred fifty-five thousand, one hundred twenty-one".