53013443540 has 24 divisors (see below), whose sum is σ = 113917261920. Its totient is φ = 20712228768.

The previous prime is 53013443507. The next prime is 53013443543. The reversal of 53013443540 is 4534431035.

It is a junction number, because it is equal to n+sod(n) for n = 53013443497 and 53013443506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53013443543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30820910 + ... + 30822629.

It is an arithmetic number, because the mean of its divisors is an integer number (4746552580).

Almost surely, 2^53013443540 is an apocalyptic number.

It is an amenable number.

53013443540 is an abundant number, since it is smaller than the sum of its proper divisors (60903818380).

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

53013443540 is a wasteful number, since it uses less digits than its factorization.

53013443540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61643591 (or 61643589 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 53013443540 its reverse (4534431035), we get a palindrome (57547874575).

The spelling of 53013443540 in words is "fifty-three billion, thirteen million, four hundred forty-three thousand, five hundred forty".