205988485 has 16 divisors (see below), whose sum is σ = 251536896. Its totient is φ = 161903808.

The previous prime is 205988449. The next prime is 205988501. The reversal of 205988485 is 584889502.

It is a cyclic number.

It is not a de Polignac number, because 205988485 - 2⁹ = 205987973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 202839 + ... + 203851.

It is an arithmetic number, because the mean of its divisors is an integer number (15721056).

Almost surely, 2^205988485 is an apocalyptic number.

It is an amenable number.

205988485 is a deficient number, since it is larger than the sum of its proper divisors (45548411).

205988485 is a wasteful number, since it uses less digits than its factorization.

205988485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692.

The product of its (nonzero) digits is 921600, while the sum is 49.

The square root of 205988485 is about 14352.2989447684. The cubic root of 205988485 is about 590.5830538037.

The spelling of 205988485 in words is "two hundred five million, nine hundred eighty-eight thousand, four hundred eighty-five".