680855530 has 16 divisors (see below), whose sum is σ = 1225946664. Its totient is φ = 272251840.

The previous prime is 680855503. The next prime is 680855551. The reversal of 680855530 is 35558086.

It can be written as a sum of positive squares in 4 ways, for example, as 446857321 + 233998209 = 21139^2 + 15297^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26304 + ... + 45316.

Almost surely, 2^680855530 is an apocalyptic number.

680855530 is a deficient number, since it is larger than the sum of its proper divisors (545091134).

680855530 is a wasteful number, since it uses less digits than its factorization.

680855530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22601.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 680855530 is about 26093.2085033635. The cubic root of 680855530 is about 879.7345661231.

The spelling of 680855530 in words is "six hundred eighty million, eight hundred fifty-five thousand, five hundred thirty".