617255 has 8 divisors (see below), whose sum is σ = 759024. Its totient is φ = 481600.

The previous prime is 617249. The next prime is 617257. The reversal of 617255 is 552716.

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

It is not a de Polignac number, because 617255 - 2⁶ = 617191 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 (617257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1301 + ... + 1710.

It is an arithmetic number, because the mean of its divisors is an integer number (94878).

2⁶¹⁷²⁵⁵ is an apocalyptic number.

617255 is a deficient number, since it is larger than the sum of its proper divisors (141769).

617255 is a wasteful number, since it uses less digits than its factorization.

617255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057.

The product of its digits is 2100, while the sum is 26.

The square root of 617255 is about 785.6557770423. The cubic root of 617255 is about 85.1441613595.

The spelling of 617255 in words is "six hundred seventeen thousand, two hundred fifty-five".