5244040253440 has 52 divisors (see below), whose sum is σ = 12584160317484. Its totient is φ = 2097616093184.

The previous prime is 5244040253429. The next prime is 5244040253443. The reversal of 5244040253440 is 443520404425.

It can be written as a sum of positive squares in 2 ways, for example, as 2731536285696 + 2512503967744 = 1652736^2 + 1585088^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5244040253440.

It is not an unprimeable number, because it can be changed into a prime (5244040253443) 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 3 ways as a sum of consecutive naturals, for example, 128007847 + ... + 128048806.

Almost surely, 2^{5244040253440} is an apocalyptic number.

It is an amenable number.

5244040253440 is an abundant number, since it is smaller than the sum of its proper divisors (7340120064044).

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

5244040253440 is an equidigital number, since it uses as much as digits as its factorization.

5244040253440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256056682 (or 256056660 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 37.

Adding to 5244040253440 its reverse (443520404425), we get a palindrome (5687560657865).

The spelling of 5244040253440 in words is "five trillion, two hundred forty-four billion, forty million, two hundred fifty-three thousand, four hundred forty".