17020520050 has 12 divisors (see below), whose sum is σ = 31658167386. Its totient is φ = 6808208000.

The previous prime is 17020520029. The next prime is 17020520051. The reversal of 17020520050 is 5002502071.

It can be written as a sum of positive squares in 3 ways, for example, as 14663514649 + 2357005401 = 121093^2 + 48549^2 .

It is not an unprimeable number, because it can be changed into a prime (17020520051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170205151 + ... + 170205250.

Almost surely, 2^17020520050 is an apocalyptic number.

17020520050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17020520050 is a deficient number, since it is larger than the sum of its proper divisors (14637647336).

17020520050 is a wasteful number, since it uses less digits than its factorization.

17020520050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340410413 (or 340410408 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The spelling of 17020520050 in words is "seventeen billion, twenty million, five hundred twenty thousand, fifty".