204221053 has 4 divisors (see below), whose sum is σ = 204354108. Its totient is φ = 204088000.

The previous prime is 204221029. The next prime is 204221057. The reversal of 204221053 is 350122402.

204221053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93276964 + 110944089 = 9658^2 + 10533^2 .

It is a cyclic number.

It is not a de Polignac number, because 204221053 - 2¹³ = 204212861 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204221053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204221057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64198 + ... + 67303.

It is an arithmetic number, because the mean of its divisors is an integer number (51088527).

Almost surely, 2^204221053 is an apocalyptic number.

It is an amenable number.

204221053 is a deficient number, since it is larger than the sum of its proper divisors (133055).

204221053 is a wasteful number, since it uses less digits than its factorization.

204221053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133054.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 204221053 is about 14290.5931647360. The cubic root of 204221053 is about 588.8890835502.

Adding to 204221053 its reverse (350122402), we get a palindrome (554343455).

The spelling of 204221053 in words is "two hundred four million, two hundred twenty-one thousand, fifty-three".