210061055 has 12 divisors (see below), whose sum is σ = 265518840. Its totient is φ = 159097104.

The previous prime is 210061039. The next prime is 210061057. The reversal of 210061055 is 550160012.

It is not a de Polignac number, because 210061055 - 2⁴ = 210061039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210061057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140522 + ... + 142008.

It is an arithmetic number, because the mean of its divisors is an integer number (22126570).

Almost surely, 2^210061055 is an apocalyptic number.

210061055 is a deficient number, since it is larger than the sum of its proper divisors (55457785).

210061055 is an frugal number, since it uses more digits than its factorization.

210061055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998 (or 1511 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 210061055 is about 14493.4831907309. The cubic root of 210061055 is about 594.4497938462.

The spelling of 210061055 in words is "two hundred ten million, sixty-one thousand, fifty-five".