204066520 has 32 divisors (see below), whose sum is σ = 524743200. Its totient is φ = 69965568.

The previous prime is 204066503. The next prime is 204066571. The reversal of 204066520 is 25660402.

204066520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 364125 + ... + 364684.

It is an arithmetic number, because the mean of its divisors is an integer number (16398225).

Almost surely, 2^204066520 is an apocalyptic number.

204066520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204066520 is an abundant number, since it is smaller than the sum of its proper divisors (320676680).

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

204066520 is a wasteful number, since it uses less digits than its factorization.

204066520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728827 (or 728823 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 204066520 is about 14285.1853330645. The cubic root of 204066520 is about 588.7405096416.

The spelling of 204066520 in words is "two hundred four million, sixty-six thousand, five hundred twenty".