53113534544 has 80 divisors (see below), whose sum is σ = 121478701056. Its totient is φ = 22014806400.

The previous prime is 53113534531. The next prime is 53113534561. The reversal of 53113534544 is 44543531135.

It is a junction number, because it is equal to n+sod(n) for n = 53113534498 and 53113534507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6978389 + ... + 6985995.

Almost surely, 2^53113534544 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 53113534544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60739350528).

53113534544 is an abundant number, since it is smaller than the sum of its proper divisors (68365166512).

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

53113534544 is a wasteful number, since it uses less digits than its factorization.

53113534544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9664 (or 9658 counting only the distinct ones).

The product of its digits is 216000, while the sum is 38.

The spelling of 53113534544 in words is "fifty-three billion, one hundred thirteen million, five hundred thirty-four thousand, five hundred forty-four".