204221054 has 4 divisors (see below), whose sum is σ = 306331584. Its totient is φ = 102110526.

The previous prime is 204221029. The next prime is 204221057. The reversal of 204221054 is 450122402.

It is a happy number.

204221054 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 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 as a sum of consecutive naturals, namely, 51055262 + ... + 51055265.

It is an arithmetic number, because the mean of its divisors is an integer number (76582896).

Almost surely, 2^204221054 is an apocalyptic number.

204221054 is a deficient number, since it is larger than the sum of its proper divisors (102110530).

204221054 is a wasteful number, since it uses less digits than its factorization.

204221054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102110529.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 204221054 is about 14290.5931997241. The cubic root of 204221054 is about 588.8890845114.

Adding to 204221054 its reverse (450122402), we get a palindrome (654343456).

The spelling of 204221054 in words is "two hundred four million, two hundred twenty-one thousand, fifty-four".