53731140 has 48 divisors (see below), whose sum is σ = 150988992. Its totient is φ = 14276736.

The previous prime is 53731109. The next prime is 53731177. The reversal of 53731140 is 4113735.

It is a self number, because there is not a number n which added to its sum of digits gives 53731140.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16962 + ... + 19878.

It is an arithmetic number, because the mean of its divisors is an integer number (3145604).

Almost surely, 2^53731140 is an apocalyptic number.

It is an amenable number.

53731140 is an abundant number, since it is smaller than the sum of its proper divisors (97257852).

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

53731140 is a wasteful number, since it uses less digits than its factorization.

53731140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3236 (or 3234 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 53731140 is about 7330.1527951333. The cubic root of 53731140 is about 377.3479703007.

Adding to 53731140 its reverse (4113735), we get a palindrome (57844875).

The spelling of 53731140 in words is "fifty-three million, seven hundred thirty-one thousand, one hundred forty".