550050000081 has 16 divisors (see below), whose sum is σ = 752346201024. Its totient is φ = 357269863104.

The previous prime is 550050000079. The next prime is 550050000163. The reversal of 550050000081 is 180000050055.

It is not a de Polignac number, because 550050000081 - 2¹ = 550050000079 is a prime.

It is a super-2 number, since 2×550050000081² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (550050000481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5319006 + ... + 5421431.

It is an arithmetic number, because the mean of its divisors is an integer number (47021637564).

Almost surely, 2^550050000081 is an apocalyptic number.

It is an amenable number.

550050000081 is a deficient number, since it is larger than the sum of its proper divisors (202296200943).

550050000081 is a wasteful number, since it uses less digits than its factorization.

550050000081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10740880.

The product of its (nonzero) digits is 1000, while the sum is 24.

The spelling of 550050000081 in words is "five hundred fifty billion, fifty million, eighty-one", and thus it is an aban number.