53440305550240 has 192 divisors, whose sum is σ = 144986528123136. Its totient is φ = 18233984950272.

The previous prime is 53440305550217. The next prime is 53440305550301. The reversal of 53440305550240 is 4205550304435.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 53440305550193 and 53440305550202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214768939 + ... + 215017621.

It is an arithmetic number, because the mean of its divisors is an integer number (755138167308).

Almost surely, 2^{53440305550240} 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 53440305550240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72493264061568).

53440305550240 is an abundant number, since it is smaller than the sum of its proper divisors (91546222572896).

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

53440305550240 is a wasteful number, since it uses less digits than its factorization.

53440305550240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249631 (or 249623 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 40.

Adding to 53440305550240 its reverse (4205550304435), we get a palindrome (57645855854675).

The spelling of 53440305550240 in words is "fifty-three trillion, four hundred forty billion, three hundred five million, five hundred fifty thousand, two hundred forty".