216552883 has 4 divisors (see below), whose sum is σ = 216938088. Its totient is φ = 216167680.

The previous prime is 216552877. The next prime is 216552943. The reversal of 216552883 is 388255612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216552883 is a prime.

It is a super-2 number, since 2×216552883² = 93790302271223378, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216552863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191758 + ... + 192883.

It is an arithmetic number, because the mean of its divisors is an integer number (54234522).

Almost surely, 2^216552883 is an apocalyptic number.

216552883 is a deficient number, since it is larger than the sum of its proper divisors (385205).

216552883 is an equidigital number, since it uses as much as digits as its factorization.

216552883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385204.

The product of its digits is 115200, while the sum is 40.

The square root of 216552883 is about 14715.7358973311. The cubic root of 216552883 is about 600.5114925388.

The spelling of 216552883 in words is "two hundred sixteen million, five hundred fifty-two thousand, eight hundred eighty-three".