204055011 has 16 divisors (see below), whose sum is σ = 315448320. Its totient is φ = 130121640.

The previous prime is 204055009. The next prime is 204055013. The reversal of 204055011 is 110550402.

It is an interprime number because it is at equal distance from previous prime (204055009) and next prime (204055013).

It is not a de Polignac number, because 204055011 - 2¹ = 204055009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204055013) 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, 163675 + ... + 164916.

It is an arithmetic number, because the mean of its divisors is an integer number (19715520).

Almost surely, 2^204055011 is an apocalyptic number.

204055011 is a deficient number, since it is larger than the sum of its proper divisors (111393309).

204055011 is a wasteful number, since it uses less digits than its factorization.

204055011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328623 (or 328617 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 204055011 is about 14284.7824974691. The cubic root of 204055011 is about 588.7294414502.

The spelling of 204055011 in words is "two hundred four million, fifty-five thousand, eleven".