215416255 has 8 divisors (see below), whose sum is σ = 264804624. Its totient is φ = 168129600.

The previous prime is 215416217. The next prime is 215416259. The reversal of 215416255 is 552614512.

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

It is not a de Polignac number, because 215416255 - 2⁷ = 215416127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215416259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525201 + ... + 525610.

It is an arithmetic number, because the mean of its divisors is an integer number (33100578).

Almost surely, 2^215416255 is an apocalyptic number.

215416255 is a deficient number, since it is larger than the sum of its proper divisors (49388369).

215416255 is a wasteful number, since it uses less digits than its factorization.

215416255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050857.

The product of its digits is 12000, while the sum is 31.

The square root of 215416255 is about 14677.0656127170. The cubic root of 215416255 is about 599.4590077292.

The spelling of 215416255 in words is "two hundred fifteen million, four hundred sixteen thousand, two hundred fifty-five".