53724560840 has 32 divisors (see below), whose sum is σ = 120905093880. Its totient is φ = 21485409792.

The previous prime is 53724560831. The next prime is 53724560963. The reversal of 53724560840 is 4806542735.

53724560840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 36188974756 + 17535586084 = 190234^2 + 132422^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53724560791 and 53724560800.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62804 + ... + 333756.

Almost surely, 2^53724560840 is an apocalyptic number.

It is an amenable number.

53724560840 is an abundant number, since it is smaller than the sum of its proper divisors (67180533040).

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

53724560840 is a wasteful number, since it uses less digits than its factorization.

53724560840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275921 (or 275917 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 53724560840 in words is "fifty-three billion, seven hundred twenty-four million, five hundred sixty thousand, eight hundred forty".