255835217 has 8 divisors (see below), whose sum is σ = 282229920. Its totient is φ = 229963360.

The previous prime is 255835201. The next prime is 255835243. The reversal of 255835217 is 712538552.

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

It is not a de Polignac number, because 255835217 - 2⁴ = 255835201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255835117) 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, 129683 + ... + 131640.

It is an arithmetic number, because the mean of its divisors is an integer number (35278740).

Almost surely, 2^255835217 is an apocalyptic number.

It is an amenable number.

255835217 is a deficient number, since it is larger than the sum of its proper divisors (26394703).

255835217 is a wasteful number, since it uses less digits than its factorization.

255835217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261423.

The product of its digits is 84000, while the sum is 38.

The square root of 255835217 is about 15994.8497023261. The cubic root of 255835217 is about 634.8241536769.

The spelling of 255835217 in words is "two hundred fifty-five million, eight hundred thirty-five thousand, two hundred seventeen".