216607255 has 8 divisors (see below), whose sum is σ = 265459392. Its totient is φ = 169598688.

The previous prime is 216607243. The next prime is 216607267. The reversal of 216607255 is 552706612.

216607255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (216607243) and next prime (216607267).

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 216607255 - 2⁹ = 216606743 is a prime.

It is a super-3 number, since 3×216607255³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 216607255.

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, 460632 + ... + 461101.

It is an arithmetic number, because the mean of its divisors is an integer number (33182424).

Almost surely, 2^216607255 is an apocalyptic number.

216607255 is a deficient number, since it is larger than the sum of its proper divisors (48852137).

216607255 is an equidigital number, since it uses as much as digits as its factorization.

216607255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921785.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 216607255 is about 14717.5831915434. The cubic root of 216607255 is about 600.5617470511.

The spelling of 216607255 in words is "two hundred sixteen million, six hundred seven thousand, two hundred fifty-five".