50021717040 has 120 divisors (see below), whose sum is σ = 168440878320. Its totient is φ = 13303291392.

The previous prime is 50021717027. The next prime is 50021717059. The reversal of 50021717040 is 4071712005.

50021717040 is a `hidden beast` number, since 500 + 21 + 71 + 70 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a junction number, because it is equal to n+sod(n) for n = 50021716995 and 50021717013.

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, 175431 + ... + 361689.

It is an arithmetic number, because the mean of its divisors is an integer number (1403673986).

Almost surely, 2^50021717040 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 50021717040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84220439160).

50021717040 is an abundant number, since it is smaller than the sum of its proper divisors (118419161280).

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

50021717040 is a wasteful number, since it uses less digits than its factorization.

50021717040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186651 (or 186642 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The spelling of 50021717040 in words is "fifty billion, twenty-one million, seven hundred seventeen thousand, forty".