219885855 has 32 divisors (see below), whose sum is σ = 407599104. Its totient is φ = 99138816.

The previous prime is 219885851. The next prime is 219885899. The reversal of 219885855 is 558588912.

It is not a de Polignac number, because 219885855 - 2² = 219885851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 219885798 and 219885807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219885851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6679 + ... + 22008.

It is an arithmetic number, because the mean of its divisors is an integer number (12737472).

Almost surely, 2^219885855 is an apocalyptic number.

219885855 is a deficient number, since it is larger than the sum of its proper divisors (187713249).

219885855 is a wasteful number, since it uses less digits than its factorization.

219885855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28775.

The product of its digits is 1152000, while the sum is 51.

The square root of 219885855 is about 14828.5486477942. The cubic root of 219885855 is about 603.5766508057.

The spelling of 219885855 in words is "two hundred nineteen million, eight hundred eighty-five thousand, eight hundred fifty-five".