53718720 has 112 divisors (see below), whose sum is σ = 186098688. Its totient is φ = 13020160.

The previous prime is 53718713. The next prime is 53718727. The reversal of 53718720 is 2781735.

53718720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53718713) and next prime (53718727).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (53718727) 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, 8017 + ... + 13103.

Almost surely, 2^53718720 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 53718720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93049344).

53718720 is an abundant number, since it is smaller than the sum of its proper divisors (132379968).

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

53718720 is a wasteful number, since it uses less digits than its factorization.

53718720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5118 (or 5108 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 53718720 is about 7329.3055605562. The cubic root of 53718720 is about 377.3188932891.

The spelling of 53718720 in words is "fifty-three million, seven hundred eighteen thousand, seven hundred twenty".