51520475336 has 16 divisors (see below), whose sum is σ = 105382790640. Its totient is φ = 23418397840.

The previous prime is 51520475329. The next prime is 51520475399. The reversal of 51520475336 is 63357402515.

It is a junction number, because it is equal to n+sod(n) for n = 51520475293 and 51520475302.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 292729886 + ... + 292730061.

It is an arithmetic number, because the mean of its divisors is an integer number (6586424415).

Almost surely, 2^51520475336 is an apocalyptic number.

It is an amenable number.

51520475336 is an abundant number, since it is smaller than the sum of its proper divisors (53862315304).

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

51520475336 is a wasteful number, since it uses less digits than its factorization.

51520475336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585459964 (or 585459960 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 41.

The spelling of 51520475336 in words is "fifty-one billion, five hundred twenty million, four hundred seventy-five thousand, three hundred thirty-six".