591560 has 32 divisors (see below), whose sum is σ = 1391040. Its totient is φ = 225984.

The previous prime is 591559. The next prime is 591581. The reversal of 591560 is 65195.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 599 + ... + 1241.

It is an arithmetic number, because the mean of its divisors is an integer number (43470).

2⁵⁹¹⁵⁶⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 591560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (695520).

591560 is an abundant number, since it is smaller than the sum of its proper divisors (799480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

591560 is a wasteful number, since it uses less digits than its factorization.

591560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 591560 is about 769.1293779333. The cubic root of 591560 is about 83.9459213522.

The spelling of 591560 in words is "five hundred ninety-one thousand, five hundred sixty".