20005355050 has 12 divisors (see below), whose sum is σ = 37209960486. Its totient is φ = 8002142000.

The previous prime is 20005355011. The next prime is 20005355059. The reversal of 20005355050 is 5055350002.

It can be written as a sum of positive squares in 3 ways, for example, as 13597192449 + 6408162601 = 116607^2 + 80051^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (20005355059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200053501 + ... + 200053600.

Almost surely, 2^20005355050 is an apocalyptic number.

20005355050 is a deficient number, since it is larger than the sum of its proper divisors (17204605436).

20005355050 is a wasteful number, since it uses less digits than its factorization.

20005355050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400107113 (or 400107108 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 25.

The spelling of 20005355050 in words is "twenty billion, five million, three hundred fifty-five thousand, fifty".