53140044 has 12 divisors (see below), whose sum is σ = 123993464. Its totient is φ = 17713344.

The previous prime is 53140027. The next prime is 53140049. The reversal of 53140044 is 44004135.

53140044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 53140044.

It is not an unprimeable number, because it can be changed into a prime (53140049) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2214157 + ... + 2214180.

Almost surely, 2^53140044 is an apocalyptic number.

It is an amenable number.

53140044 is an abundant number, since it is smaller than the sum of its proper divisors (70853420).

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

53140044 is a wasteful number, since it uses less digits than its factorization.

53140044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4428344 (or 4428342 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 53140044 is about 7289.7218053915. The cubic root of 53140044 is about 375.9591305360.

Adding to 53140044 its reverse (44004135), we get a palindrome (97144179).

The spelling of 53140044 in words is "fifty-three million, one hundred forty thousand, forty-four".