51035330042020 has 24 divisors (see below), whose sum is σ = 107174368809144. Its totient is φ = 20414098546176.

The previous prime is 51035330041957. The next prime is 51035330042057. The reversal of 51035330042020 is 2024003353015.

It can be written as a sum of positive squares in 4 ways, for example, as 580561706916 + 50454768335104 = 761946^2 + 7103152^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51035330042020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13103362 + ... + 16545958.

It is an arithmetic number, because the mean of its divisors is an integer number (4465598700381).

Almost surely, 2^{51035330042020} is an apocalyptic number.

It is an amenable number.

51035330042020 is an abundant number, since it is smaller than the sum of its proper divisors (56139038767124).

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

51035330042020 is a wasteful number, since it uses less digits than its factorization.

51035330042020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4183839 (or 4183837 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 51035330042020 its reverse (2024003353015), we get a palindrome (53059333395035).

The spelling of 51035330042020 in words is "fifty-one trillion, thirty-five billion, three hundred thirty million, forty-two thousand, twenty".