204512485 has 16 divisors (see below), whose sum is σ = 260631360. Its totient is φ = 153619200.

The previous prime is 204512459. The next prime is 204512489. The reversal of 204512485 is 584215402.

It is not a de Polignac number, because 204512485 - 2⁵ = 204512453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204512489) 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 15 ways as a sum of consecutive naturals, for example, 1210 + ... + 20260.

It is an arithmetic number, because the mean of its divisors is an integer number (16289460).

Almost surely, 2^204512485 is an apocalyptic number.

It is an amenable number.

204512485 is a deficient number, since it is larger than the sum of its proper divisors (56118875).

204512485 is a wasteful number, since it uses less digits than its factorization.

204512485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19188.

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 204512485 is about 14300.7861672007. The cubic root of 204512485 is about 589.1690735393.

Adding to 204512485 its reverse (584215402), we get a palindrome (788727887).

The spelling of 204512485 in words is "two hundred four million, five hundred twelve thousand, four hundred eighty-five".