218205050 has 48 divisors (see below), whose sum is σ = 467589120. Its totient is φ = 74208960.

The previous prime is 218205041. The next prime is 218205059. The reversal of 218205050 is 50502812.

It is an interprime number because it is at equal distance from previous prime (218205041) and next prime (218205059).

It is a super-2 number, since 2×218205050² = 95226887691005000, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (218205059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41996 + ... + 46904.

It is an arithmetic number, because the mean of its divisors is an integer number (9741440).

Almost surely, 2^218205050 is an apocalyptic number.

218205050 is an abundant number, since it is smaller than the sum of its proper divisors (249384070).

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

218205050 is a wasteful number, since it uses less digits than its factorization.

218205050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055 (or 5050 counting only the distinct ones).

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

The square root of 218205050 is about 14771.7652973502. The cubic root of 218205050 is about 602.0348044468.

Adding to 218205050 its reverse (50502812), we get a palindrome (268707862).

The spelling of 218205050 in words is "two hundred eighteen million, two hundred five thousand, fifty".