52000140 has 48 divisors (see below), whose sum is σ = 145974528. Its totient is φ = 13831104.

The previous prime is 52000139. The next prime is 52000159. The reversal of 52000140 is 4100025.

52000140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29319 + ... + 31041.

It is an arithmetic number, because the mean of its divisors is an integer number (3041136).

Almost surely, 2^52000140 is an apocalyptic number.

It is an amenable number.

52000140 is an abundant number, since it is smaller than the sum of its proper divisors (93974388).

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

52000140 is a wasteful number, since it uses less digits than its factorization.

52000140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238 (or 2236 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 52000140 is about 7211.1122581749. The cubic root of 52000140 is about 373.2514506504.

Adding to 52000140 its reverse (4100025), we get a palindrome (56100165).

The spelling of 52000140 in words is "fifty-two million, one hundred forty", and thus it is an aban number.