53240330440 has 128 divisors (see below), whose sum is σ = 133113456000. Its totient is φ = 19002931200.

The previous prime is 53240330419. The next prime is 53240330441. The reversal of 53240330440 is 4403304235.

It is a junction number, because it is equal to n+sod(n) for n = 53240330399 and 53240330408.

It is not an unprimeable number, because it can be changed into a prime (53240330441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5438350 + ... + 5448130.

It is an arithmetic number, because the mean of its divisors is an integer number (1039948875).

Almost surely, 2^53240330440 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 53240330440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66556728000).

53240330440 is an abundant number, since it is smaller than the sum of its proper divisors (79873125560).

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

53240330440 is a wasteful number, since it uses less digits than its factorization.

53240330440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10031 (or 10027 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 28.

Adding to 53240330440 its reverse (4403304235), we get a palindrome (57643634675).

The spelling of 53240330440 in words is "fifty-three billion, two hundred forty million, three hundred thirty thousand, four hundred forty".