53847640 has 64 divisors (see below), whose sum is σ = 151061760. Its totient is φ = 16782720.

The previous prime is 53847611. The next prime is 53847641. The reversal of 53847640 is 4674835.

53847640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 53847640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53847641) 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 15 ways as a sum of consecutive naturals, for example, 5662 + ... + 11821.

It is an arithmetic number, because the mean of its divisors is an integer number (2360340).

Almost surely, 2^53847640 is an apocalyptic number.

It is an amenable number.

53847640 is an abundant number, since it is smaller than the sum of its proper divisors (97214120).

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

53847640 is a wasteful number, since it uses less digits than its factorization.

53847640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17512 (or 17508 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 53847640 is about 7338.0951206699. The cubic root of 53847640 is about 377.6204957215.

The spelling of 53847640 in words is "fifty-three million, eight hundred forty-seven thousand, six hundred forty".