204440013425 has 12 divisors (see below), whose sum is σ = 253517108316. Its totient is φ = 163544596800.

The previous prime is 204440013419. The next prime is 204440013461. The reversal of 204440013425 is 524310044402.

204440013425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 111526609936 + 92913403489 = 333956^2 + 304817^2 .

It is not a de Polignac number, because 204440013425 - 2²⁴ = 204423236209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 415355 + ... + 762495.

It is an arithmetic number, because the mean of its divisors is an integer number (21126425693).

Almost surely, 2^204440013425 is an apocalyptic number.

204440013425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204440013425 is a deficient number, since it is larger than the sum of its proper divisors (49077094891).

204440013425 is a wasteful number, since it uses less digits than its factorization.

204440013425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370708 (or 370703 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 204440013425 its reverse (524310044402), we get a palindrome (728750057827).

The spelling of 204440013425 in words is "two hundred four billion, four hundred forty million, thirteen thousand, four hundred twenty-five".