561422 has 4 divisors (see below), whose sum is σ = 842136. Its totient is φ = 280710.

The previous prime is 561419. The next prime is 561439. The reversal of 561422 is 224165.

It is a happy number.

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

It is a d-powerful number, because it can be written as 5⁵ + 6³ + 4⁵ + 1 + 2¹⁵ + 2¹⁹ .

It is a junction number, because it is equal to n+sod(n) for n = 561394 and 561403.

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 561422.

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 as a sum of consecutive naturals, namely, 140354 + ... + 140357.

It is an arithmetic number, because the mean of its divisors is an integer number (210534).

2⁵⁶¹⁴²² is an apocalyptic number.

561422 is a deficient number, since it is larger than the sum of its proper divisors (280714).

561422 is a wasteful number, since it uses less digits than its factorization.

561422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280713.

The product of its digits is 480, while the sum is 20.

The square root of 561422 is about 749.2809886818. The cubic root of 561422 is about 82.4954144987.

Adding to 561422 its reverse (224165), we get a palindrome (785587).

The spelling of 561422 in words is "five hundred sixty-one thousand, four hundred twenty-two".