204725497 has 2 divisors, whose sum is σ = 204725498. Its totient is φ = 204725496.

The previous prime is 204725491. The next prime is 204725501. The reversal of 204725497 is 794527402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164326761 + 40398736 = 12819^2 + 6356^2 .

It is a cyclic number.

It is not a de Polignac number, because 204725497 - 2¹⁵ = 204692729 is a prime.

It is not a weakly prime, because it can be changed into another prime (204725491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102362748 + 102362749.

It is an arithmetic number, because the mean of its divisors is an integer number (102362749).

Almost surely, 2^204725497 is an apocalyptic number.

It is an amenable number.

204725497 is a deficient number, since it is larger than the sum of its proper divisors (1).

204725497 is an equidigital number, since it uses as much as digits as its factorization.

204725497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 204725497 is about 14308.2317915248. The cubic root of 204725497 is about 589.3735541866.

The spelling of 204725497 in words is "two hundred four million, seven hundred twenty-five thousand, four hundred ninety-seven".