561548 has 12 divisors (see below), whose sum is σ = 1058400. Its totient is φ = 259152.

The previous prime is 561529. The next prime is 561551. The reversal of 561548 is 845165.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 561548.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 561548.

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 3 ways as a sum of consecutive naturals, for example, 5348 + ... + 5451.

It is an arithmetic number, because the mean of its divisors is an integer number (88200).

2⁵⁶¹⁵⁴⁸ is an apocalyptic number.

It is an amenable number.

561548 is a deficient number, since it is larger than the sum of its proper divisors (496852).

561548 is a wasteful number, since it uses less digits than its factorization.

561548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10816 (or 10814 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 561548 is about 749.3650645713. The cubic root of 561548 is about 82.5015855220.

The spelling of 561548 in words is "five hundred sixty-one thousand, five hundred forty-eight".