53727140 has 48 divisors (see below), whose sum is σ = 123606000. Its totient is φ = 19525632.

The previous prime is 53727133. The next prime is 53727143. The reversal of 53727140 is 4172735.

It can be written as a sum of positive squares in 8 ways, for example, as 1048576 + 52678564 = 1024^2 + 7258^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (53727143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7136 + ... + 12584.

It is an arithmetic number, because the mean of its divisors is an integer number (2575125).

Almost surely, 2^53727140 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 53727140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61803000).

53727140 is an abundant number, since it is smaller than the sum of its proper divisors (69878860).

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

53727140 is a wasteful number, since it uses less digits than its factorization.

53727140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5504 (or 5502 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 53727140 is about 7329.8799444466. The cubic root of 53727140 is about 377.3386062129.

Adding to 53727140 its reverse (4172735), we get a palindrome (57899875).

The spelling of 53727140 in words is "fifty-three million, seven hundred twenty-seven thousand, one hundred forty".