50040021012 has 12 divisors (see below), whose sum is σ = 116760049056. Its totient is φ = 16680007000.

The previous prime is 50040021007. The next prime is 50040021019. The reversal of 50040021012 is 21012004005.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 50040020982 and 50040021000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50040021019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2085000864 + ... + 2085000887.

It is an arithmetic number, because the mean of its divisors is an integer number (9730004088).

Almost surely, 2^50040021012 is an apocalyptic number.

It is an amenable number.

50040021012 is an abundant number, since it is smaller than the sum of its proper divisors (66720028044).

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

50040021012 is a wasteful number, since it uses less digits than its factorization.

50040021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170001758 (or 4170001756 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 50040021012 its reverse (21012004005), we get a palindrome (71052025017).

The spelling of 50040021012 in words is "fifty billion, forty million, twenty-one thousand, twelve".