68875520 has 72 divisors (see below), whose sum is σ = 188571264. Its totient is φ = 23611392.

The previous prime is 68875519. The next prime is 68875549. The reversal of 68875520 is 2557886.

It is a congruent number.

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, 5117 + ... + 12803.

Almost surely, 2^68875520 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 68875520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94285632).

68875520 is an abundant number, since it is smaller than the sum of its proper divisors (119695744).

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

68875520 is an equidigital number, since it uses as much as digits as its factorization.

68875520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7715 (or 7701 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 68875520 is about 8299.1276650019. The cubic root of 68875520 is about 409.9097957415.

The spelling of 68875520 in words is "sixty-eight million, eight hundred seventy-five thousand, five hundred twenty".