550221335251 has 8 divisors (see below), whose sum is σ = 629044968704. Its totient is φ = 471452848200.

The previous prime is 550221335243. The next prime is 550221335311. The reversal of 550221335251 is 152533122055.

550221335251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 550221335251 - 2³ = 550221335243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550221335221) 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, 13765215 + ... + 13805128.

It is an arithmetic number, because the mean of its divisors is an integer number (78630621088).

Almost surely, 2^550221335251 is an apocalyptic number.

550221335251 is a deficient number, since it is larger than the sum of its proper divisors (78823633453).

550221335251 is a wasteful number, since it uses less digits than its factorization.

550221335251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27573201.

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 550221335251 in words is "five hundred fifty billion, two hundred twenty-one million, three hundred thirty-five thousand, two hundred fifty-one".