561082 has 4 divisors (see below), whose sum is σ = 841626. Its totient is φ = 280540.

The previous prime is 561079. The next prime is 561083. The reversal of 561082 is 280165.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 561001 + 81 = 749^2 + 9^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (561083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140269 + ... + 140272.

2⁵⁶¹⁰⁸² is an apocalyptic number.

561082 is a deficient number, since it is larger than the sum of its proper divisors (280544).

561082 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 13 representation: 561082 = (168502)₁₃.

561082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280543.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 561082 is about 749.0540701445. The cubic root of 561082 is about 82.4787579226.

The spelling of 561082 in words is "five hundred sixty-one thousand, eighty-two".