561575 has 12 divisors (see below), whose sum is σ = 796080. Its totient is φ = 384960.

The previous prime is 561559. The next prime is 561599. The reversal of 561575 is 575165.

It is not a de Polignac number, because 561575 - 2⁴ = 561559 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1430 + ... + 1779.

It is an arithmetic number, because the mean of its divisors is an integer number (66340).

2⁵⁶¹⁵⁷⁵ is an apocalyptic number.

561575 is a deficient number, since it is larger than the sum of its proper divisors (234505).

561575 is a wasteful number, since it uses less digits than its factorization.

561575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226 (or 3221 counting only the distinct ones).

The product of its digits is 5250, while the sum is 29.

The square root of 561575 is about 749.3830796062. The cubic root of 561575 is about 82.5029077641.

The spelling of 561575 in words is "five hundred sixty-one thousand, five hundred seventy-five".