53000140 has 12 divisors (see below), whose sum is σ = 111300336. Its totient is φ = 21200048.

The previous prime is 53000137. The next prime is 53000141. The reversal of 53000140 is 4100035.

It is a self number, because there is not a number n which added to its sum of digits gives 53000140.

It is not an unprimeable number, because it can be changed into a prime (53000141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1324984 + ... + 1325023.

It is an arithmetic number, because the mean of its divisors is an integer number (9275028).

Almost surely, 2^53000140 is an apocalyptic number.

It is an amenable number.

53000140 is an abundant number, since it is smaller than the sum of its proper divisors (58300196).

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

53000140 is a wasteful number, since it uses less digits than its factorization.

53000140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650016 (or 2650014 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 53000140 is about 7280.1195045136. The cubic root of 53000140 is about 375.6289061640.

Adding to 53000140 its reverse (4100035), we get a palindrome (57100175).

The spelling of 53000140 in words is "fifty-three million, one hundred forty", and thus it is an aban number.