680522113 has 4 divisors (see below), whose sum is σ = 684085248. Its totient is φ = 676958980.

The previous prime is 680522111. The next prime is 680522123. The reversal of 680522113 is 311225086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 680522113 - 2¹ = 680522111 is a prime.

It is a super-2 number, since 2×680522113² = 926220692563969538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680522111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1781281 + ... + 1781662.

It is an arithmetic number, because the mean of its divisors is an integer number (171021312).

Almost surely, 2^680522113 is an apocalyptic number.

It is an amenable number.

680522113 is a deficient number, since it is larger than the sum of its proper divisors (3563135).

680522113 is a wasteful number, since it uses less digits than its factorization.

680522113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563134.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 680522113 is about 26086.8187596725. The cubic root of 680522113 is about 879.5909397885.

Adding to 680522113 its reverse (311225086), we get a palindrome (991747199).

The spelling of 680522113 in words is "six hundred eighty million, five hundred twenty-two thousand, one hundred thirteen".