68755020 has 48 divisors (see below), whose sum is σ = 194298720. Its totient is φ = 18164736.

The previous prime is 68755013. The next prime is 68755039. The reversal of 68755020 is 2055786.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1284 + ... + 11796.

It is an arithmetic number, because the mean of its divisors is an integer number (4047890).

Almost surely, 2^68755020 is an apocalyptic number.

68755020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68755020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97149360).

68755020 is an abundant number, since it is smaller than the sum of its proper divisors (125543700).

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

68755020 is a wasteful number, since it uses less digits than its factorization.

68755020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10634 (or 10632 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 68755020 is about 8291.8646877527. The cubic root of 68755020 is about 409.6706059492.

The spelling of 68755020 in words is "sixty-eight million, seven hundred fifty-five thousand, twenty".