204444425 has 12 divisors (see below), whose sum is σ = 260363916. Its totient is φ = 159134400.

The previous prime is 204444421. The next prime is 204444437. The reversal of 204444425 is 524444402.

It can be written as a sum of positive squares in 6 ways, for example, as 39476089 + 164968336 = 6283^2 + 12844^2 .

It is not a de Polignac number, because 204444425 - 2² = 204444421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204444421) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 109586 + ... + 111435.

It is an arithmetic number, because the mean of its divisors is an integer number (21696993).

Almost surely, 2^204444425 is an apocalyptic number.

204444425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204444425 is a deficient number, since it is larger than the sum of its proper divisors (55919491).

204444425 is a wasteful number, since it uses less digits than its factorization.

204444425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221068 (or 221063 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 29.

The square root of 204444425 is about 14298.4063797334. The cubic root of 204444425 is about 589.1037094839.

Adding to 204444425 its reverse (524444402), we get a palindrome (728888827).

The spelling of 204444425 in words is "two hundred four million, four hundred forty-four thousand, four hundred twenty-five".