259422091517 has 2 divisors, whose sum is σ = 259422091518. Its totient is φ = 259422091516.

The previous prime is 259422091483. The next prime is 259422091541. The reversal of 259422091517 is 715190224952.

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., 224771758201 + 34650333316 = 474101^2 + 186146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259422091517 is a prime.

It is a super-2 number, since 2×259422091517² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259422090517) 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, 129711045758 + 129711045759.

It is an arithmetic number, because the mean of its divisors is an integer number (129711045759).

Almost surely, 2^259422091517 is an apocalyptic number.

It is an amenable number.

259422091517 is a deficient number, since it is larger than the sum of its proper divisors (1).

259422091517 is an equidigital number, since it uses as much as digits as its factorization.

259422091517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 259422091517 in words is "two hundred fifty-nine billion, four hundred twenty-two million, ninety-one thousand, five hundred seventeen".