216568252 has 24 divisors (see below), whose sum is σ = 390451824. Its totient is φ = 105028992.

The previous prime is 216568249. The next prime is 216568279. The reversal of 216568252 is 252865612.

216568252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49248 + ... + 53464.

It is an arithmetic number, because the mean of its divisors is an integer number (16268826).

Almost surely, 2^216568252 is an apocalyptic number.

It is an amenable number.

216568252 is a deficient number, since it is larger than the sum of its proper divisors (173883572).

216568252 is a wasteful number, since it uses less digits than its factorization.

216568252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4605 (or 4603 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 216568252 is about 14716.2580841734. The cubic root of 216568252 is about 600.5256985265.

The spelling of 216568252 in words is "two hundred sixteen million, five hundred sixty-eight thousand, two hundred fifty-two".