259325404549 has 2 divisors, whose sum is σ = 259325404550. Its totient is φ = 259325404548.

The previous prime is 259325404517. The next prime is 259325404567. The reversal of 259325404549 is 945404523952.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 245287420225 + 14037984324 = 495265^2 + 118482^2 .

It is a cyclic number.

It is not a de Polignac number, because 259325404549 - 2⁵ = 259325404517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 259325404496 and 259325404505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259325404579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129662702274 + 129662702275.

It is an arithmetic number, because the mean of its divisors is an integer number (129662702275).

Almost surely, 2^259325404549 is an apocalyptic number.

It is an amenable number.

259325404549 is a deficient number, since it is larger than the sum of its proper divisors (1).

259325404549 is an equidigital number, since it uses as much as digits as its factorization.

259325404549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776000, while the sum is 52.

The spelling of 259325404549 in words is "two hundred fifty-nine billion, three hundred twenty-five million, four hundred four thousand, five hundred forty-nine".