259059491 has 2 divisors, whose sum is σ = 259059492. Its totient is φ = 259059490.

The previous prime is 259059431. The next prime is 259059503. The reversal of 259059491 is 194950952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 259059491 - 2¹⁰ = 259058467 is a prime.

It is a super-2 number, since 2×259059491² = 134223639754358162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (259059401) 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, 129529745 + 129529746.

It is an arithmetic number, because the mean of its divisors is an integer number (129529746).

Almost surely, 2^259059491 is an apocalyptic number.

259059491 is a deficient number, since it is larger than the sum of its proper divisors (1).

259059491 is an equidigital number, since it uses as much as digits as its factorization.

259059491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 44.

The square root of 259059491 is about 16095.3251287447. The cubic root of 259059491 is about 637.4799099654.

The spelling of 259059491 in words is "two hundred fifty-nine million, fifty-nine thousand, four hundred ninety-one".