68285560 has 64 divisors (see below), whose sum is σ = 181278720. Its totient is φ = 22654080.

The previous prime is 68285533. The next prime is 68285573. The reversal of 68285560 is 6558286.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4747 + ... + 12613.

It is an arithmetic number, because the mean of its divisors is an integer number (2832480).

Almost surely, 2^68285560 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 68285560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90639360).

68285560 is an abundant number, since it is smaller than the sum of its proper divisors (112993160).

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

68285560 is a wasteful number, since it uses less digits than its factorization.

68285560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7916 (or 7912 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 68285560 is about 8263.5077297719. The cubic root of 68285560 is about 408.7360639539.

The spelling of 68285560 in words is "sixty-eight million, two hundred eighty-five thousand, five hundred sixty".