53068140 has 144 divisors (see below), whose sum is σ = 172972800. Its totient is φ = 13129344.

The previous prime is 53068139. The next prime is 53068157. The reversal of 53068140 is 4186035.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 201649 + ... + 201911.

It is an arithmetic number, because the mean of its divisors is an integer number (1201200).

Almost surely, 2^53068140 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 53068140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86486400).

53068140 is an abundant number, since it is smaller than the sum of its proper divisors (119904660).

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

53068140 is a wasteful number, since it uses less digits than its factorization.

53068140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 53068140 is about 7284.7882604781. The cubic root of 53068140 is about 375.7894834095.

The spelling of 53068140 in words is "fifty-three million, sixty-eight thousand, one hundred forty".