20020050 has 72 divisors (see below), whose sum is σ = 56972916. Its totient is φ = 5022720.

The previous prime is 20020027. The next prime is 20020093. The reversal of 20020050 is 5002002.

It can be written as a sum of positive squares in 6 ways, for example, as 15992001 + 4028049 = 3999^2 + 2007^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6342 + ... + 8958.

Almost surely, 2^20020050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20020050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28486458).

20020050 is an abundant number, since it is smaller than the sum of its proper divisors (36952866).

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

20020050 is a wasteful number, since it uses less digits than its factorization.

20020050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652 (or 2644 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 9.

The square root of 20020050 is about 4474.3770516129. The cubic root of 20020050 is about 271.5324381539.

Adding to 20020050 its reverse (5002002), we get a palindrome (25022052).

The spelling of 20020050 in words is "twenty million, twenty thousand, fifty".