50021538597776 has 80 divisors (see below), whose sum is σ = 103094509033584. Its totient is φ = 23430396444672.

The previous prime is 50021538597749. The next prime is 50021538597853. The reversal of 50021538597776 is 67779583512005.

It can be written as a sum of positive squares in 8 ways, for example, as 4169355610000 + 45852182987776 = 2041900^2 + 6771424^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57597746 + ... + 58459758.

Almost surely, 2^{50021538597776} 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 50021538597776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51547254516792).

50021538597776 is an abundant number, since it is smaller than the sum of its proper divisors (53072970435808).

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

50021538597776 is a wasteful number, since it uses less digits than its factorization.

50021538597776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863028 (or 863022 counting only the distinct ones).

The product of its (nonzero) digits is 111132000, while the sum is 65.

The spelling of 50021538597776 in words is "fifty trillion, twenty-one billion, five hundred thirty-eight million, five hundred ninety-seven thousand, seven hundred seventy-six".