680695053 has 8 divisors (see below), whose sum is σ = 907752288. Its totient is φ = 453717264.

The previous prime is 680695039. The next prime is 680695063. The reversal of 680695053 is 350596086.

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

It is not a de Polignac number, because 680695053 - 2⁵ = 680695021 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 680694996 and 680695014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680695003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4350 + ... + 37152.

It is an arithmetic number, because the mean of its divisors is an integer number (113469036).

Almost surely, 2^680695053 is an apocalyptic number.

It is an amenable number.

680695053 is a deficient number, since it is larger than the sum of its proper divisors (227057235).

680695053 is a wasteful number, since it uses less digits than its factorization.

680695053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39723.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 680695053 is about 26090.1332499472. The cubic root of 680695053 is about 879.6654431589.

The spelling of 680695053 in words is "six hundred eighty million, six hundred ninety-five thousand, fifty-three".