204111552 has 56 divisors (see below), whose sum is σ = 543153600. Its totient is φ = 67645696.

The previous prime is 204111539. The next prime is 204111559. The reversal of 204111552 is 255111402.

It is not an unprimeable number, because it can be changed into a prime (204111559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31399 + ... + 37337.

Almost surely, 2^204111552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204111552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271576800).

204111552 is an abundant number, since it is smaller than the sum of its proper divisors (339042048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204111552 is a wasteful number, since it uses less digits than its factorization.

204111552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6133 (or 6123 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 204111552 is about 14286.7614244797. The cubic root of 204111552 is about 588.7838128623.

Adding to 204111552 its reverse (255111402), we get a palindrome (459222954).

The spelling of 204111552 in words is "two hundred four million, one hundred eleven thousand, five hundred fifty-two".