216052 has 6 divisors (see below), whose sum is σ = 378098. Its totient is φ = 108024.

The previous prime is 216037. The next prime is 216061. The reversal of 216052 is 250612.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 139876 + 76176 = 374^2 + 276^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 27003 + ... + 27010.

216052 is a Friedman number, since it can be written as 60^(2+1)+52, using all its digits and the basic arithmetic operations.

2²¹⁶⁰⁵² is an apocalyptic number.

It is an amenable number.

216052 is a deficient number, since it is larger than the sum of its proper divisors (162046).

216052 is a wasteful number, since it uses less digits than its factorization.

216052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54017 (or 54015 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 216052 is about 464.8139412711. The cubic root of 216052 is about 60.0048144285.

Adding to 216052 its reverse (250612), we get a palindrome (466664).

The spelling of 216052 in words is "two hundred sixteen thousand, fifty-two".