680125057 has 8 divisors (see below), whose sum is σ = 686590632. Its totient is φ = 673689600.

The previous prime is 680125021. The next prime is 680125067. The reversal of 680125057 is 750521086.

It can be written as a sum of positive squares in 4 ways, for example, as 10816 + 680114241 = 104^2 + 26079^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 680125057 - 2¹⁹ = 679600769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680125067) 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, 39207 + ... + 53827.

It is an arithmetic number, because the mean of its divisors is an integer number (85823829).

Almost surely, 2^680125057 is an apocalyptic number.

It is an amenable number.

680125057 is a deficient number, since it is larger than the sum of its proper divisors (6465575).

680125057 is a wasteful number, since it uses less digits than its factorization.

680125057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15059.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 680125057 is about 26079.2073690900. The cubic root of 680125057 is about 879.4198384144.

The spelling of 680125057 in words is "six hundred eighty million, one hundred twenty-five thousand, fifty-seven".