680255 has 16 divisors (see below), whose sum is σ = 886464. Its totient is φ = 499200.

The previous prime is 680249. The next prime is 680263. The reversal of 680255 is 552086.

It is not a de Polignac number, because 680255 - 2⁸ = 679999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4430 + ... + 4580.

It is an arithmetic number, because the mean of its divisors is an integer number (55404).

2⁶⁸⁰²⁵⁵ is an apocalyptic number.

680255 is a deficient number, since it is larger than the sum of its proper divisors (206209).

680255 is a wasteful number, since it uses less digits than its factorization.

680255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 680255 is about 824.7757270919. The cubic root of 680255 is about 87.9475841436.

The spelling of 680255 in words is "six hundred eighty thousand, two hundred fifty-five".