216752256 has 96 divisors (see below), whose sum is σ = 712857600. Its totient is φ = 61926912.

The previous prime is 216752251. The next prime is 216752269. The reversal of 216752256 is 652257612.

216752256 is a `hidden beast` number, since 21 + 67 + 522 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 216752256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216752251) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 5376 + ... + 21503.

It is an arithmetic number, because the mean of its divisors is an integer number (7425600).

Almost surely, 2^216752256 is an apocalyptic number.

It is an amenable number.

216752256 is an abundant number, since it is smaller than the sum of its proper divisors (496105344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216752256 is a wasteful number, since it uses less digits than its factorization.

216752256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26906 (or 26891 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 216752256 is about 14722.5084819130. The cubic root of 216752256 is about 600.6957262964.

The spelling of 216752256 in words is "two hundred sixteen million, seven hundred fifty-two thousand, two hundred fifty-six".