51335560245000 has 160 divisors (see below), whose sum is σ = 160393960378080. Its totient is φ = 13687632960000.

The previous prime is 51335560244957. The next prime is 51335560245103. The reversal of 51335560245000 is 54206553315.

It is a self number, because there is not a number n which added to its sum of digits gives 51335560245000.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 112617540 + ... + 113072460.

It is an arithmetic number, because the mean of its divisors is an integer number (1002462252363).

Almost surely, 2^{51335560245000} is an apocalyptic number.

51335560245000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51335560245000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80196980189040).

51335560245000 is an abundant number, since it is smaller than the sum of its proper divisors (109058400133080).

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

51335560245000 is a wasteful number, since it uses less digits than its factorization.

51335560245000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462473 (or 462454 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 39.

Adding to 51335560245000 its reverse (54206553315), we get a palindrome (51389766798315).

The spelling of 51335560245000 in words is "fifty-one trillion, three hundred thirty-five billion, five hundred sixty million, two hundred forty-five thousand".