53520430440 has 192 divisors, whose sum is σ = 174041775360. Its totient is φ = 13155125760.

The previous prime is 53520430433. The next prime is 53520430441. The reversal of 53520430440 is 4403402535.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 53520430398 and 53520430407.

It is not an unprimeable number, because it can be changed into a prime (53520430441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1586145 + ... + 1619535.

It is an arithmetic number, because the mean of its divisors is an integer number (906467580).

Almost surely, 2^53520430440 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 53520430440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87020887680).

53520430440 is an abundant number, since it is smaller than the sum of its proper divisors (120521344920).

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

53520430440 is a wasteful number, since it uses less digits than its factorization.

53520430440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33480 (or 33457 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 53520430440 its reverse (4403402535), we get a palindrome (57923832975).

The spelling of 53520430440 in words is "fifty-three billion, five hundred twenty million, four hundred thirty thousand, four hundred forty".