20050900 has 36 divisors (see below), whose sum is σ = 44531872. Its totient is φ = 7832160.

The previous prime is 20050879. The next prime is 20050913. The reversal of 20050900 is 905002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1969 + ... + 6631.

Almost surely, 2^20050900 is an apocalyptic number.

20050900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20050900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22265936).

20050900 is an abundant number, since it is smaller than the sum of its proper divisors (24480972).

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

20050900 is a wasteful number, since it uses less digits than its factorization.

20050900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4720 (or 4713 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 20050900 is about 4477.8231318354. The cubic root of 20050900 is about 271.6718396814.

Adding to 20050900 its reverse (905002), we get a palindrome (20955902).

The spelling of 20050900 in words is "twenty million, fifty thousand, nine hundred".