17221050056 has 32 divisors (see below), whose sum is σ = 37507212480. Its totient is φ = 7259457600.

The previous prime is 17221050029. The next prime is 17221050079. The reversal of 17221050056 is 65005012271.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2517230 + ... + 2524061.

It is an arithmetic number, because the mean of its divisors is an integer number (1172100390).

Almost surely, 2^17221050056 is an apocalyptic number.

It is an amenable number.

17221050056 is an abundant number, since it is smaller than the sum of its proper divisors (20286162424).

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

17221050056 is a wasteful number, since it uses less digits than its factorization.

17221050056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5041365 (or 5041361 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

The spelling of 17221050056 in words is "seventeen billion, two hundred twenty-one million, fifty thousand, fifty-six".