204817425133 has 2 divisors, whose sum is σ = 204817425134. Its totient is φ = 204817425132.

The previous prime is 204817425089. The next prime is 204817425167. The reversal of 204817425133 is 331524718402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194638027684 + 10179397449 = 441178^2 + 100893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204817425133 is a prime.

It is a super-2 number, since 2×204817425133² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204817225133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102408712566 + 102408712567.

It is an arithmetic number, because the mean of its divisors is an integer number (102408712567).

Almost surely, 2^204817425133 is an apocalyptic number.

It is an amenable number.

204817425133 is a deficient number, since it is larger than the sum of its proper divisors (1).

204817425133 is an equidigital number, since it uses as much as digits as its factorization.

204817425133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 204817425133 in words is "two hundred four billion, eight hundred seventeen million, four hundred twenty-five thousand, one hundred thirty-three".