204521054 has 16 divisors (see below), whose sum is σ = 325478400. Its totient is φ = 96113304.

The previous prime is 204521041. The next prime is 204521071. The reversal of 204521054 is 450125402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16364 + ... + 26015.

It is an arithmetic number, because the mean of its divisors is an integer number (20342400).

Almost surely, 2^204521054 is an apocalyptic number.

204521054 is a deficient number, since it is larger than the sum of its proper divisors (120957346).

204521054 is a wasteful number, since it uses less digits than its factorization.

204521054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42527.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 204521054 is about 14301.0857629762. The cubic root of 204521054 is about 589.1773020822.

Adding to 204521054 its reverse (450125402), we get a palindrome (654646456).

The spelling of 204521054 in words is "two hundred four million, five hundred twenty-one thousand, fifty-four".