219877055 has 16 divisors (see below), whose sum is σ = 270817344. Its totient is φ = 171275520.

The previous prime is 219877003. The next prime is 219877061. The reversal of 219877055 is 550778912.

It is not a de Polignac number, because 219877055 - 2⁶ = 219876991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 219876997 and 219877015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179174 + ... + 180396.

It is an arithmetic number, because the mean of its divisors is an integer number (16926084).

Almost surely, 2^219877055 is an apocalyptic number.

219877055 is a deficient number, since it is larger than the sum of its proper divisors (50940289).

219877055 is a wasteful number, since it uses less digits than its factorization.

219877055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146.

The product of its (nonzero) digits is 176400, while the sum is 44.

The square root of 219877055 is about 14828.2519198994. The cubic root of 219877055 is about 603.5685988320.

The spelling of 219877055 in words is "two hundred nineteen million, eight hundred seventy-seven thousand, fifty-five".