204225855 has 16 divisors (see below), whose sum is σ = 340968960. Its totient is φ = 104184608.

The previous prime is 204225841. The next prime is 204225863. The reversal of 204225855 is 558522402.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 204225855 - 2⁸ = 204225599 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295635 + ... + 296324.

It is an arithmetic number, because the mean of its divisors is an integer number (21310560).

Almost surely, 2^204225855 is an apocalyptic number.

204225855 is a deficient number, since it is larger than the sum of its proper divisors (136743105).

204225855 is a wasteful number, since it uses less digits than its factorization.

204225855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591990.

The product of its (nonzero) digits is 32000, while the sum is 33.

The square root of 204225855 is about 14290.7611763685. The cubic root of 204225855 is about 588.8936991749.

The spelling of 204225855 in words is "two hundred four million, two hundred twenty-five thousand, eight hundred fifty-five".