210220055 has 8 divisors (see below), whose sum is σ = 252384000. Its totient is φ = 168096096.

The previous prime is 210220037. The next prime is 210220063. The reversal of 210220055 is 550022012.

210220055 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 210220055 - 2⁸ = 210219799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3146 + ... + 20744.

It is an arithmetic number, because the mean of its divisors is an integer number (31548000).

Almost surely, 2^210220055 is an apocalyptic number.

210220055 is a deficient number, since it is larger than the sum of its proper divisors (42163945).

210220055 is a wasteful number, since it uses less digits than its factorization.

210220055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19993.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 210220055 is about 14498.9673770238. The cubic root of 210220055 is about 594.5997402189.

Adding to 210220055 its reverse (550022012), we get a palindrome (760242067).

The spelling of 210220055 in words is "two hundred ten million, two hundred twenty thousand, fifty-five".