219889953 has 6 divisors (see below), whose sum is σ = 317618834. Its totient is φ = 146593296.

The previous prime is 219889939. The next prime is 219889987. The reversal of 219889953 is 359988912.

It can be written as a sum of positive squares in only one way, i.e., 219276864 + 613089 = 14808^2 + 783^2 .

It is not a de Polignac number, because 219889953 - 2⁴ = 219889937 is a prime.

It is a super-3 number, since 3×219889953³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 219889953.

It is not an unprimeable number, because it can be changed into a prime (219889993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12216100 + ... + 12216117.

Almost surely, 2^219889953 is an apocalyptic number.

It is an amenable number.

219889953 is a deficient number, since it is larger than the sum of its proper divisors (97728881).

219889953 is a wasteful number, since it uses less digits than its factorization.

219889953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24432223 (or 24432220 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 54.

The square root of 219889953 is about 14828.6868265535. The cubic root of 219889953 is about 603.5804003902.

The spelling of 219889953 in words is "two hundred nineteen million, eight hundred eighty-nine thousand, nine hundred fifty-three".