550221242055 has 16 divisors (see below), whose sum is σ = 932139516384. Its totient is φ = 276189486080.

The previous prime is 550221242047. The next prime is 550221242069. The reversal of 550221242055 is 550242122055.

It is a happy number.

It is not a de Polignac number, because 550221242055 - 2³ = 550221242047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1078864926 + ... + 1078865435.

It is an arithmetic number, because the mean of its divisors is an integer number (58258719774).

Almost surely, 2^550221242055 is an apocalyptic number.

550221242055 is a deficient number, since it is larger than the sum of its proper divisors (381918274329).

550221242055 is a wasteful number, since it uses less digits than its factorization.

550221242055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157730386.

The product of its (nonzero) digits is 40000, while the sum is 33.

The spelling of 550221242055 in words is "five hundred fifty billion, two hundred twenty-one million, two hundred forty-two thousand, fifty-five".