218050056 has 160 divisors (see below), whose sum is σ = 711944640. Its totient is φ = 61057152.

The previous prime is 218050009. The next prime is 218050067. The reversal of 218050056 is 650050812.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 239955 + ... + 240861.

It is an arithmetic number, because the mean of its divisors is an integer number (4449654).

Almost surely, 2^218050056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 218050056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355972320).

218050056 is an abundant number, since it is smaller than the sum of its proper divisors (493894584).

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

218050056 is a wasteful number, since it uses less digits than its factorization.

218050056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985 (or 972 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 218050056 is about 14766.5180729920. The cubic root of 218050056 is about 601.8922261934.

The spelling of 218050056 in words is "two hundred eighteen million, fifty thousand, fifty-six".