561322 has 16 divisors (see below), whose sum is σ = 883872. Its totient is φ = 267120.

The previous prime is 561313. The next prime is 561343. The reversal of 561322 is 223165.

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 561322.

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 7 ways as a sum of consecutive naturals, for example, 5193 + ... + 5299.

It is an arithmetic number, because the mean of its divisors is an integer number (55242).

2⁵⁶¹³²² is an apocalyptic number.

561322 is a deficient number, since it is larger than the sum of its proper divisors (322550).

561322 is a wasteful number, since it uses less digits than its factorization.

561322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213.

The product of its digits is 360, while the sum is 19.

The square root of 561322 is about 749.2142550699. The cubic root of 561322 is about 82.4905162040.

Adding to 561322 its reverse (223165), we get a palindrome (784487).

It can be divided in two parts, 56 and 1322, that added together give a triangular number (1378 = T₅₂).

The spelling of 561322 in words is "five hundred sixty-one thousand, three hundred twenty-two".