53121433482 has 72 divisors (see below), whose sum is σ = 126900639684. Its totient is φ = 15964808832.

The previous prime is 53121433481. The next prime is 53121433507. The reversal of 53121433482 is 28433412135.

53121433482 is a `hidden beast` number, since 5 + 31 + 2 + 143 + 3 + 482 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 39005855001 + 14115578481 = 197499^2 + 118809^2 .

It is not an unprimeable number, because it can be changed into a prime (53121433481) 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 35 ways as a sum of consecutive naturals, for example, 371278 + ... + 494054.

Almost surely, 2^53121433482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53121433482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63450319842).

53121433482 is an abundant number, since it is smaller than the sum of its proper divisors (73779206202).

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

53121433482 is a wasteful number, since it uses less digits than its factorization.

53121433482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122884 (or 122838 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The spelling of 53121433482 in words is "fifty-three billion, one hundred twenty-one million, four hundred thirty-three thousand, four hundred eighty-two".