561588 has 24 divisors (see below), whose sum is σ = 1336608. Its totient is φ = 183456.

The previous prime is 561559. The next prime is 561599. The reversal of 561588 is 885165.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 561588.

It is an unprimeable number.

561588 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195 + ... + 1077.

It is an arithmetic number, because the mean of its divisors is an integer number (55692).

2⁵⁶¹⁵⁸⁸ is an apocalyptic number.

It is an amenable number.

561588 is an abundant number, since it is smaller than the sum of its proper divisors (775020).

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

561588 is a wasteful number, since it uses less digits than its factorization.

561588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943 (or 941 counting only the distinct ones).

The product of its digits is 9600, while the sum is 33.

The square root of 561588 is about 749.3917533573. The cubic root of 561588 is about 82.5035443840.

The spelling of 561588 in words is "five hundred sixty-one thousand, five hundred eighty-eight".