20500204 has 6 divisors (see below), whose sum is σ = 35875364. Its totient is φ = 10250100.

The previous prime is 20500189. The next prime is 20500217. The reversal of 20500204 is 40200502.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2562522 + ... + 2562529.

Almost surely, 2^20500204 is an apocalyptic number.

It is an amenable number.

20500204 is a deficient number, since it is larger than the sum of its proper divisors (15375160).

20500204 is a wasteful number, since it uses less digits than its factorization.

20500204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5125055 (or 5125053 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 20500204 is about 4527.7150970440. The cubic root of 20500204 is about 273.6860915707.

Adding to 20500204 its reverse (40200502), we get a palindrome (60700706).

The spelling of 20500204 in words is "twenty million, five hundred thousand, two hundred four".