51532043536 has 40 divisors (see below), whose sum is σ = 104383944000. Its totient is φ = 24598544256.

The previous prime is 51532043533. The next prime is 51532043569. The reversal of 51532043536 is 63534023515.

It is a junction number, because it is equal to n+sod(n) for n = 51532043495 and 51532043504.

It is not an unprimeable number, because it can be changed into a prime (51532043533) 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 7 ways as a sum of consecutive naturals, for example, 58590 + ... + 326338.

It is an arithmetic number, because the mean of its divisors is an integer number (2609598600).

Almost surely, 2^51532043536 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 51532043536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52191972000).

51532043536 is an abundant number, since it is smaller than the sum of its proper divisors (52851900464).

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

51532043536 is a wasteful number, since it uses less digits than its factorization.

51532043536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268303 (or 268297 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 37.

The spelling of 51532043536 in words is "fifty-one billion, five hundred thirty-two million, forty-three thousand, five hundred thirty-six".