680555507 has 2 divisors, whose sum is σ = 680555508. Its totient is φ = 680555506.

The previous prime is 680555503. The next prime is 680555569. The reversal of 680555507 is 705555086.

680555507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 680555507 - 2² = 680555503 is a prime.

It is not a weakly prime, because it can be changed into another prime (680555503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340277753 + 340277754.

It is an arithmetic number, because the mean of its divisors is an integer number (340277754).

Almost surely, 2^680555507 is an apocalyptic number.

680555507 is a deficient number, since it is larger than the sum of its proper divisors (1).

680555507 is an equidigital number, since it uses as much as digits as its factorization.

680555507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210000, while the sum is 41.

The square root of 680555507 is about 26087.4588068673. The cubic root of 680555507 is about 879.6053270650.

The spelling of 680555507 in words is "six hundred eighty million, five hundred fifty-five thousand, five hundred seven".