51835520508 has 48 divisors (see below), whose sum is σ = 124027503264. Its totient is φ = 16839669760.

The previous prime is 51835520459. The next prime is 51835520521. The reversal of 51835520508 is 80502553815.

It is a self number, because there is not a number n which added to its sum of digits gives 51835520508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426766 + ... + 534602.

It is an arithmetic number, because the mean of its divisors is an integer number (2583906318).

Almost surely, 2^51835520508 is an apocalyptic number.

It is an amenable number.

51835520508 is an abundant number, since it is smaller than the sum of its proper divisors (72191982756).

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

51835520508 is a wasteful number, since it uses less digits than its factorization.

51835520508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108862 (or 108860 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 42.

The spelling of 51835520508 in words is "fifty-one billion, eight hundred thirty-five million, five hundred twenty thousand, five hundred eight".