216625233 has 8 divisors (see below), whose sum is σ = 315091296. Its totient is φ = 131288000.

The previous prime is 216625229. The next prime is 216625249. The reversal of 216625233 is 332526612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216625233 - 2² = 216625229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 216625233.

It is not an unprimeable number, because it can be changed into a prime (216625223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3282168 + ... + 3282233.

It is an arithmetic number, because the mean of its divisors is an integer number (39386412).

Almost surely, 2^216625233 is an apocalyptic number.

It is an amenable number.

216625233 is a deficient number, since it is larger than the sum of its proper divisors (98466063).

216625233 is a wasteful number, since it uses less digits than its factorization.

216625233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6564415.

The product of its digits is 12960, while the sum is 30.

The square root of 216625233 is about 14718.1939449105. The cubic root of 216625233 is about 600.5783617614.

The spelling of 216625233 in words is "two hundred sixteen million, six hundred twenty-five thousand, two hundred thirty-three".