210028055 has 8 divisors (see below), whose sum is σ = 253491552. Its totient is φ = 167050528.

The previous prime is 210028043. The next prime is 210028061. The reversal of 210028055 is 550820012.

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 210028055 - 2²⁶ = 142919191 is a prime.

It is a super-2 number, since 2×210028055² = 88223567774166050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210028055.

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, 120539 + ... + 122268.

It is an arithmetic number, because the mean of its divisors is an integer number (31686444).

Almost surely, 2^210028055 is an apocalyptic number.

210028055 is a deficient number, since it is larger than the sum of its proper divisors (43463497).

210028055 is a wasteful number, since it uses less digits than its factorization.

210028055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242985.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 210028055 is about 14492.3447033253. The cubic root of 210028055 is about 594.4186634200.

Adding to 210028055 its reverse (550820012), we get a palindrome (760848067).

The spelling of 210028055 in words is "two hundred ten million, twenty-eight thousand, fifty-five".