680055 has 8 divisors (see below), whose sum is σ = 1088112. Its totient is φ = 362688.

The previous prime is 680039. The next prime is 680059. The reversal of 680055 is 550086.

680055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 680055 - 2⁴ = 680039 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680059) 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, 22654 + ... + 22683.

It is an arithmetic number, because the mean of its divisors is an integer number (136014).

2⁶⁸⁰⁰⁵⁵ is an apocalyptic number.

680055 is a deficient number, since it is larger than the sum of its proper divisors (408057).

680055 is a wasteful number, since it uses less digits than its factorization.

680055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45345.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 680055 is about 824.6544730977. The cubic root of 680055 is about 87.9389642188.

The spelling of 680055 in words is "six hundred eighty thousand, fifty-five".