53713440 has 144 divisors (see below), whose sum is σ = 200019456. Its totient is φ = 13017600.

The previous prime is 53713411. The next prime is 53713463. The reversal of 53713440 is 4431735.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14145 + ... + 17535.

It is an arithmetic number, because the mean of its divisors is an integer number (1389024).

Almost surely, 2^53713440 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 53713440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100009728).

53713440 is an abundant number, since it is smaller than the sum of its proper divisors (146306016).

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

53713440 is a wasteful number, since it uses less digits than its factorization.

53713440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423 (or 3412 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 53713440 is about 7328.9453538691. The cubic root of 53713440 is about 377.3065306898.

The spelling of 53713440 in words is "fifty-three million, seven hundred thirteen thousand, four hundred forty".