53031740 has 24 divisors (see below), whose sum is σ = 111866832. Its totient is φ = 21117440.

The previous prime is 53031703. The next prime is 53031751. The reversal of 53031740 is 4713035.

It is a happy number.

53031740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1301 + ... + 10380.

It is an arithmetic number, because the mean of its divisors is an integer number (4661118).

Almost surely, 2^53031740 is an apocalyptic number.

It is an amenable number.

53031740 is an abundant number, since it is smaller than the sum of its proper divisors (58835092).

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

53031740 is a wasteful number, since it uses less digits than its factorization.

53031740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11917 (or 11915 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 53031740 is about 7282.2894751582. The cubic root of 53031740 is about 375.7035444270.

Adding to 53031740 its reverse (4713035), we get a palindrome (57744775).

The spelling of 53031740 in words is "fifty-three million, thirty-one thousand, seven hundred forty".