20055004 has 6 divisors (see below), whose sum is σ = 35096264. Its totient is φ = 10027500.

The previous prime is 20055001. The next prime is 20055017. The reversal of 20055004 is 40055002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20055001) 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 as a sum of consecutive naturals, namely, 2506872 + ... + 2506879.

Almost surely, 2^20055004 is an apocalyptic number.

It is an amenable number.

20055004 is a deficient number, since it is larger than the sum of its proper divisors (15041260).

20055004 is a wasteful number, since it uses less digits than its factorization.

20055004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5013755 (or 5013753 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 20055004 is about 4478.2813667745. The cubic root of 20055004 is about 271.6903735987.

The spelling of 20055004 in words is "twenty million, fifty-five thousand, four".