680055192 has 96 divisors (see below), whose sum is σ = 1905256080. Its totient is φ = 218987520.

The previous prime is 680055157. The next prime is 680055197. The reversal of 680055192 is 291550086.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680055197) 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 23 ways as a sum of consecutive naturals, for example, 314788 + ... + 316940.

Almost surely, 2^680055192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680055192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (952628040).

680055192 is an abundant number, since it is smaller than the sum of its proper divisors (1225200888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680055192 is a wasteful number, since it uses less digits than its factorization.

680055192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313 (or 2306 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 680055192 is about 26077.8678576298. The cubic root of 680055192 is about 879.3897249471.

The spelling of 680055192 in words is "six hundred eighty million, fifty-five thousand, one hundred ninety-two".