204245522 has 8 divisors (see below), whose sum is σ = 329935116. Its totient is φ = 94267152.

The previous prime is 204245501. The next prime is 204245527. The reversal of 204245522 is 225542402.

It can be written as a sum of positive squares in 2 ways, for example, as 153536881 + 50708641 = 12391^2 + 7121^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 7855597 = 204245522 / (2 + 0 + 4 + 2 + 4 + 5 + 5 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 204245491 and 204245500.

It is not an unprimeable number, because it can be changed into a prime (204245527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3927773 + ... + 3927824.

Almost surely, 2^204245522 is an apocalyptic number.

204245522 is a deficient number, since it is larger than the sum of its proper divisors (125689594).

204245522 is a wasteful number, since it uses less digits than its factorization.

204245522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7855612.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 204245522 is about 14291.4492617089. The cubic root of 204245522 is about 588.9126021041.

Adding to 204245522 its reverse (225542402), we get a palindrome (429787924).

The spelling of 204245522 in words is "two hundred four million, two hundred forty-five thousand, five hundred twenty-two".