204055564 has 6 divisors (see below), whose sum is σ = 357097244. Its totient is φ = 102027780.

The previous prime is 204055561. The next prime is 204055589. The reversal of 204055564 is 465550402.

It is not an unprimeable number, because it can be changed into a prime (204055561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25506942 + ... + 25506949.

Almost surely, 2^204055564 is an apocalyptic number.

It is an amenable number.

204055564 is a deficient number, since it is larger than the sum of its proper divisors (153041680).

204055564 is a wasteful number, since it uses less digits than its factorization.

204055564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51013895 (or 51013893 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 204055564 is about 14284.8018537185. The cubic root of 204055564 is about 588.7299732791.

The spelling of 204055564 in words is "two hundred four million, fifty-five thousand, five hundred sixty-four".