20255204 has 6 divisors (see below), whose sum is σ = 35446614. Its totient is φ = 10127600.

The previous prime is 20255201. The next prime is 20255227. The reversal of 20255204 is 40255202.

It can be written as a sum of positive squares in only one way, i.e., 11833600 + 8421604 = 3440^2 + 2902^2 .

It is not an unprimeable number, because it can be changed into a prime (20255201) 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, 2531897 + ... + 2531904.

It is an arithmetic number, because the mean of its divisors is an integer number (5907769).

Almost surely, 2^20255204 is an apocalyptic number.

It is an amenable number.

20255204 is a deficient number, since it is larger than the sum of its proper divisors (15191410).

20255204 is a wasteful number, since it uses less digits than its factorization.

20255204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063805 (or 5063803 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 20255204 is about 4500.5781850780. The cubic root of 20255204 is about 272.5914358029.

The spelling of 20255204 in words is "twenty million, two hundred fifty-five thousand, two hundred four".