259982539 has 2 divisors, whose sum is σ = 259982540. Its totient is φ = 259982538.

The previous prime is 259982507. The next prime is 259982551. The reversal of 259982539 is 935289952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 259982539 - 2⁵ = 259982507 is a prime.

It is not a weakly prime, because it can be changed into another prime (259982039) 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, 129991269 + 129991270.

It is an arithmetic number, because the mean of its divisors is an integer number (129991270).

Almost surely, 2^259982539 is an apocalyptic number.

259982539 is a deficient number, since it is larger than the sum of its proper divisors (1).

259982539 is an equidigital number, since it uses as much as digits as its factorization.

259982539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1749600, while the sum is 52.

The square root of 259982539 is about 16123.9740448811. The cubic root of 259982539 is about 638.2361417575.

The spelling of 259982539 in words is "two hundred fifty-nine million, nine hundred eighty-two thousand, five hundred thirty-nine".