50521019556 has 72 divisors (see below), whose sum is σ = 136764538176. Its totient is φ = 14219029440.

The previous prime is 50521019531. The next prime is 50521019561. The reversal of 50521019556 is 65591012505.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 310086 + ... + 444066.

Almost surely, 2^50521019556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50521019556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68382269088).

50521019556 is an abundant number, since it is smaller than the sum of its proper divisors (86243518620).

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

50521019556 is a wasteful number, since it uses less digits than its factorization.

50521019556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134129 (or 134060 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 39.

The spelling of 50521019556 in words is "fifty billion, five hundred twenty-one million, nineteen thousand, five hundred fifty-six".