204488653 has 12 divisors (see below), whose sum is σ = 217304668. Its totient is φ = 192360960.

The previous prime is 204488651. The next prime is 204488717. The reversal of 204488653 is 356884402.

It can be written as a sum of positive squares in 2 ways, for example, as 32012964 + 172475689 = 5658^2 + 13133^2 .

It is not a de Polignac number, because 204488653 - 2¹ = 204488651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204488651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29101 + ... + 35437.

Almost surely, 2^204488653 is an apocalyptic number.

204488653 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

204488653 is a deficient number, since it is larger than the sum of its proper divisors (12816015).

204488653 is an equidigital number, since it uses as much as digits as its factorization.

204488653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6444 (or 6421 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The square root of 204488653 is about 14299.9529020203. The cubic root of 204488653 is about 589.1461872058.

The spelling of 204488653 in words is "two hundred four million, four hundred eighty-eight thousand, six hundred fifty-three".