204550580 has 96 divisors (see below), whose sum is σ = 497871360. Its totient is φ = 69949440.

The previous prime is 204550571. The next prime is 204550583. The reversal of 204550580 is 85055402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204550583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231740 + ... + 232620.

It is an arithmetic number, because the mean of its divisors is an integer number (5186160).

Almost surely, 2^204550580 is an apocalyptic number.

204550580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204550580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248935680).

204550580 is an abundant number, since it is smaller than the sum of its proper divisors (293320780).

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

204550580 is a wasteful number, since it uses less digits than its factorization.

204550580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 204550580 is about 14302.1180249640. The cubic root of 204550580 is about 589.2056532171.

It can be divided in two parts, 2045 and 50580, that added together give a palindrome (52625).

The spelling of 204550580 in words is "two hundred four million, five hundred fifty thousand, five hundred eighty".