204406645253225 has 12 divisors (see below), whose sum is σ = 253527275364300. Its totient is φ = 163484648299200.

The previous prime is 204406645253219. The next prime is 204406645253269. The reversal of 204406645253225 is 522352546604402.

204406645253225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 1353350648896 + 203053294604329 = 1163336^2 + 14249677^2 .

It is not a de Polignac number, because 204406645253225 - 2¹² = 204406645249129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1016595050 + ... + 1016796099.

It is an arithmetic number, because the mean of its divisors is an integer number (21127272947025).

Almost surely, 2^{204406645253225} is an apocalyptic number.

204406645253225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204406645253225 is a deficient number, since it is larger than the sum of its proper divisors (49120630111075).

204406645253225 is a wasteful number, since it uses less digits than its factorization.

204406645253225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033395180 (or 2033395175 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 50.

The spelling of 204406645253225 in words is "two hundred four trillion, four hundred six billion, six hundred forty-five million, two hundred fifty-three thousand, two hundred twenty-five".