204242252507 has 2 divisors, whose sum is σ = 204242252508. Its totient is φ = 204242252506.

The previous prime is 204242252471. The next prime is 204242252569. The reversal of 204242252507 is 705252242402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204242252507 - 2⁶ = 204242252443 is a prime.

It is not a weakly prime, because it can be changed into another prime (204242252107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102121126253 + 102121126254.

It is an arithmetic number, because the mean of its divisors is an integer number (102121126254).

Almost surely, 2^204242252507 is an apocalyptic number.

204242252507 is a deficient number, since it is larger than the sum of its proper divisors (1).

204242252507 is an equidigital number, since it uses as much as digits as its factorization.

204242252507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 89600, while the sum is 35.

Adding to 204242252507 its reverse (705252242402), we get a palindrome (909494494909).

The spelling of 204242252507 in words is "two hundred four billion, two hundred forty-two million, two hundred fifty-two thousand, five hundred seven".