216600053 has 4 divisors (see below), whose sum is σ = 216727488. Its totient is φ = 216472620.

The previous prime is 216600047. The next prime is 216600061. The reversal of 216600053 is 350006612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 216600053 - 2¹⁰ = 216599029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216600353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61133 + ... + 64578.

It is an arithmetic number, because the mean of its divisors is an integer number (54181872).

Almost surely, 2^216600053 is an apocalyptic number.

It is an amenable number.

216600053 is a deficient number, since it is larger than the sum of its proper divisors (127435).

216600053 is a wasteful number, since it uses less digits than its factorization.

216600053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127434.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 216600053 is about 14717.3385161856. The cubic root of 216600053 is about 600.5550909280. Note that the first 3 decimals are identical.

Adding to 216600053 its reverse (350006612), we get a palindrome (566606665).

The spelling of 216600053 in words is "two hundred sixteen million, six hundred thousand, fifty-three".