20050251100 has 36 divisors (see below), whose sum is σ = 47464415208. Its totient is φ = 7291000000.

The previous prime is 20050251079. The next prime is 20050251103. The reversal of 20050251100 is 115205002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20050251103) 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 11 ways as a sum of consecutive naturals, for example, 9112651 + ... + 9114850.

It is an arithmetic number, because the mean of its divisors is an integer number (1318455978).

Almost surely, 2^20050251100 is an apocalyptic number.

20050251100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20050251100 is an abundant number, since it is smaller than the sum of its proper divisors (27414164108).

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

20050251100 is a wasteful number, since it uses less digits than its factorization.

20050251100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18227526 (or 18227519 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

Adding to 20050251100 its reverse (115205002), we get a palindrome (20165456102).

The spelling of 20050251100 in words is "twenty billion, fifty million, two hundred fifty-one thousand, one hundred".