204625262321 has 2 divisors, whose sum is σ = 204625262322. Its totient is φ = 204625262320.

The previous prime is 204625262273. The next prime is 204625262353. The reversal of 204625262321 is 123262526402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160749676096 + 43875586225 = 400936^2 + 209465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204625262321 is a prime.

It is not a weakly prime, because it can be changed into another prime (204625262021) 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, 102312631160 + 102312631161.

It is an arithmetic number, because the mean of its divisors is an integer number (102312631161).

Almost surely, 2^204625262321 is an apocalyptic number.

It is an amenable number.

204625262321 is a deficient number, since it is larger than the sum of its proper divisors (1).

204625262321 is an equidigital number, since it uses as much as digits as its factorization.

204625262321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 204625262321 its reverse (123262526402), we get a palindrome (327887788723).

The spelling of 204625262321 in words is "two hundred four billion, six hundred twenty-five million, two hundred sixty-two thousand, three hundred twenty-one".