216056055 has 16 divisors (see below), whose sum is σ = 349856640. Its totient is φ = 113840928.

The previous prime is 216056051. The next prime is 216056059. The reversal of 216056055 is 550650612.

216056055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (216056051) and next prime (216056059).

It is not a de Polignac number, because 216056055 - 2² = 216056051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216056051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85525 + ... + 88014.

It is an arithmetic number, because the mean of its divisors is an integer number (21866040).

Almost surely, 2^216056055 is an apocalyptic number.

216056055 is a deficient number, since it is larger than the sum of its proper divisors (133800585).

216056055 is a wasteful number, since it uses less digits than its factorization.

216056055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173630.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 216056055 is about 14698.8453628168. The cubic root of 216056055 is about 600.0518982886.

The spelling of 216056055 in words is "two hundred sixteen million, fifty-six thousand, fifty-five".