680381725 has 12 divisors (see below), whose sum is σ = 845748820. Its totient is φ = 542966400.

The previous prime is 680381719. The next prime is 680381743. The reversal of 680381725 is 527183086.

680381725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 67026969 + 613354756 = 8187^2 + 24766^2 .

It is not a de Polignac number, because 680381725 - 2⁵ = 680381693 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23046 + ... + 43495.

Almost surely, 2^680381725 is an apocalyptic number.

It is an amenable number.

680381725 is a deficient number, since it is larger than the sum of its proper divisors (165367095).

680381725 is a wasteful number, since it uses less digits than its factorization.

680381725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66960 (or 66955 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 680381725 is about 26084.1278366749. The cubic root of 680381725 is about 879.5304506910.

The spelling of 680381725 in words is "six hundred eighty million, three hundred eighty-one thousand, seven hundred twenty-five".