204226555 has 16 divisors (see below), whose sum is σ = 273026880. Its totient is φ = 145611648.

The previous prime is 204226549. The next prime is 204226571. The reversal of 204226555 is 555622402.

It is a happy number.

It is not a de Polignac number, because 204226555 - 2⁵ = 204226523 is a prime.

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, 52287 + ... + 56056.

It is an arithmetic number, because the mean of its divisors is an integer number (17064180).

Almost surely, 2^204226555 is an apocalyptic number.

204226555 is a deficient number, since it is larger than the sum of its proper divisors (68800325).

204226555 is a wasteful number, since it uses less digits than its factorization.

204226555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108390.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 204226555 is about 14290.7856676951. The cubic root of 204226555 is about 588.8943720004.

Adding to 204226555 its reverse (555622402), we get a palindrome (759848957).

The spelling of 204226555 in words is "two hundred four million, two hundred twenty-six thousand, five hundred fifty-five".