216600052 has 12 divisors (see below), whose sum is σ = 384243076. Its totient is φ = 106816320.

The previous prime is 216600047. The next prime is 216600061. The reversal of 216600052 is 250006612.

It can be written as a sum of positive squares in 2 ways, for example, as 145298916 + 71301136 = 12054^2 + 8444^2 .

It is a junction number, because it is equal to n+sod(n) for n = 216599996 and 216600032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370599 + ... + 371182.

Almost surely, 2^216600052 is an apocalyptic number.

It is an amenable number.

216600052 is a deficient number, since it is larger than the sum of its proper divisors (167643024).

216600052 is a wasteful number, since it uses less digits than its factorization.

216600052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741858 (or 741856 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 216600052 is about 14717.3384822121. The cubic root of 216600052 is about 600.5550900038. Note that the first 3 decimals are identical.

Adding to 216600052 its reverse (250006612), we get a palindrome (466606664).

The spelling of 216600052 in words is "two hundred sixteen million, six hundred thousand, fifty-two".