204225857 has 12 divisors (see below), whose sum is σ = 229262208. Its totient is φ = 181704600.

The previous prime is 204225841. The next prime is 204225863. The reversal of 204225857 is 758522402.

It is not a de Polignac number, because 204225857 - 2⁴ = 204225841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204225817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12269 + ... + 23642.

It is an arithmetic number, because the mean of its divisors is an integer number (19105184).

Almost surely, 2^204225857 is an apocalyptic number.

It is an amenable number.

204225857 is a deficient number, since it is larger than the sum of its proper divisors (25036351).

204225857 is a wasteful number, since it uses less digits than its factorization.

204225857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35980 (or 35969 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 204225857 is about 14290.7612463437. The cubic root of 204225857 is about 588.8937010972.

The spelling of 204225857 in words is "two hundred four million, two hundred twenty-five thousand, eight hundred fifty-seven".