680655125 has 16 divisors (see below), whose sum is σ = 850197504. Its totient is φ = 544050000.

The previous prime is 680655119. The next prime is 680655137. The reversal of 680655125 is 521556086.

It is not a de Polignac number, because 680655125 - 2¹⁰ = 680654101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242480 + ... + 245270.

It is an arithmetic number, because the mean of its divisors is an integer number (53137344).

Almost surely, 2^680655125 is an apocalyptic number.

It is an amenable number.

680655125 is a deficient number, since it is larger than the sum of its proper divisors (169542379).

680655125 is a wasteful number, since it uses less digits than its factorization.

680655125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4757 (or 4747 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 680655125 is about 26089.3680452402. The cubic root of 680655125 is about 879.6482431081.

The spelling of 680655125 in words is "six hundred eighty million, six hundred fifty-five thousand, one hundred twenty-five".