50665021572 has 48 divisors (see below), whose sum is σ = 129141698112. Its totient is φ = 15332062080.

The previous prime is 50665021531. The next prime is 50665021591. The reversal of 50665021572 is 27512056605.

It is a self number, because there is not a number n which added to its sum of digits gives 50665021572.

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 15 ways as a sum of consecutive naturals, for example, 165063 + ... + 358574.

It is an arithmetic number, because the mean of its divisors is an integer number (2690452044).

Almost surely, 2^50665021572 is an apocalyptic number.

It is an amenable number.

50665021572 is an abundant number, since it is smaller than the sum of its proper divisors (78476676540).

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

50665021572 is a wasteful number, since it uses less digits than its factorization.

50665021572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524388 (or 524386 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 50665021572 in words is "fifty billion, six hundred sixty-five million, twenty-one thousand, five hundred seventy-two".