216430053 has 16 divisors (see below), whose sum is σ = 333774336. Its totient is φ = 122183280.

The previous prime is 216430037. The next prime is 216430061. The reversal of 216430053 is 350034612.

It is a happy number.

It is not a de Polignac number, because 216430053 - 2⁴ = 216430037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216430453) by changing a digit.

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, 60343 + ... + 63828.

It is an arithmetic number, because the mean of its divisors is an integer number (20860896).

Almost surely, 2^216430053 is an apocalyptic number.

It is an amenable number.

216430053 is a deficient number, since it is larger than the sum of its proper divisors (117344283).

216430053 is a wasteful number, since it uses less digits than its factorization.

216430053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124264.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 216430053 is about 14711.5618817310. The cubic root of 216430053 is about 600.3979332458.

Adding to 216430053 its reverse (350034612), we get a palindrome (566464665).

The spelling of 216430053 in words is "two hundred sixteen million, four hundred thirty thousand, fifty-three".