20050002 has 48 divisors (see below), whose sum is σ = 49937472. Its totient is φ = 5695200.

The previous prime is 20049989. The next prime is 20050003. The reversal of 20050002 is 20005002.

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

It is not an unprimeable number, because it can be changed into a prime (20050003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28252 + ... + 28952.

It is an arithmetic number, because the mean of its divisors is an integer number (1040364).

Almost surely, 2^20050002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20050002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24968736).

20050002 is an abundant number, since it is smaller than the sum of its proper divisors (29887470).

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

20050002 is a wasteful number, since it uses less digits than its factorization.

20050002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943 (or 940 counting only the distinct ones).

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

The square root of 20050002 is about 4477.7228587754. The cubic root of 20050002 is about 271.6677839207.

Adding to 20050002 its reverse (20005002), we get a palindrome (40055004).

It can be divided in two parts, 2005000 and 2, that added together give a palindrome (2005002).

The spelling of 20050002 in words is "twenty million, fifty thousand, two".