201055636 has 12 divisors (see below), whose sum is σ = 360429300. Its totient is φ = 98075840.

The previous prime is 201055633. The next prime is 201055667. The reversal of 201055636 is 636550102.

It can be written as a sum of positive squares in 2 ways, for example, as 79923600 + 121132036 = 8940^2 + 11006^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201055633) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 612811 + ... + 613138.

It is an arithmetic number, because the mean of its divisors is an integer number (30035775).

Almost surely, 2^201055636 is an apocalyptic number.

It is an amenable number.

201055636 is a deficient number, since it is larger than the sum of its proper divisors (159373664).

201055636 is a wasteful number, since it uses less digits than its factorization.

201055636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225994 (or 1225992 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 201055636 is about 14179.4088734333. The cubic root of 201055636 is about 585.8306421563.

The spelling of 201055636 in words is "two hundred one million, fifty-five thousand, six hundred thirty-six".