255550221010 has 64 divisors (see below), whose sum is σ = 540614207232. Its totient is φ = 85138235136.

The previous prime is 255550220971. The next prime is 255550221013. The reversal of 255550221010 is 10122055552.

255550221010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 255550221010.

It is not an unprimeable number, because it can be changed into a prime (255550221013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1938249 + ... + 2065891.

It is an arithmetic number, because the mean of its divisors is an integer number (8447096988).

Almost surely, 2^255550221010 is an apocalyptic number.

255550221010 is an abundant number, since it is smaller than the sum of its proper divisors (285063986222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255550221010 is a wasteful number, since it uses less digits than its factorization.

255550221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128467.

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

Adding to 255550221010 its reverse (10122055552), we get a palindrome (265672276562).

The spelling of 255550221010 in words is "two hundred fifty-five billion, five hundred fifty million, two hundred twenty-one thousand, ten".