216053 has 8 divisors (see below), whose sum is σ = 233280. Its totient is φ = 199360.

The previous prime is 216037. The next prime is 216061. The reversal of 216053 is 350612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216053 - 2⁴ = 216037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1118 + ... + 1296.

It is an arithmetic number, because the mean of its divisors is an integer number (29160).

216053 is a Friedman number, since it can be written as 60^3+52+1, using all its digits and the basic arithmetic operations.

2²¹⁶⁰⁵³ is an apocalyptic number.

It is an amenable number.

216053 is a deficient number, since it is larger than the sum of its proper divisors (17227).

216053 is a wasteful number, since it uses less digits than its factorization.

216053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 216053 is about 464.8150169691. The cubic root of 216053 is about 60.0049070061.

Adding to 216053 its reverse (350612), we get a palindrome (566665).

The spelling of 216053 in words is "two hundred sixteen thousand, fifty-three".