591559 has 2 divisors, whose sum is σ = 591560. Its totient is φ = 591558.

The previous prime is 591553. The next prime is 591581. The reversal of 591559 is 955195.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 591559 - 2⁷ = 591431 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (591553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 295779 + 295780.

It is an arithmetic number, because the mean of its divisors is an integer number (295780).

2⁵⁹¹⁵⁵⁹ is an apocalyptic number.

591559 is a deficient number, since it is larger than the sum of its proper divisors (1).

591559 is an equidigital number, since it uses as much as digits as its factorization.

591559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10125, while the sum is 34.

The square root of 591559 is about 769.1287278473. The cubic root of 591559 is about 83.9458740502.

The spelling of 591559 in words is "five hundred ninety-one thousand, five hundred fifty-nine".