561323 has 16 divisors (see below), whose sum is σ = 699840.
Its totient is φ = 439296.
The previous prime is 561313. The next prime is 561343. The reversal of 561323 is 323165.
Adding to 561323 its reverse (323165), we get a palindrome (884488).
It can be divided in two parts, 56 and 1323, that multiplied together give a cube (74088 = 423).
It is a cyclic number.
It is not a de Polignac number, because 561323 - 24 = 561307 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 561295 and 561304.
It is not an unprimeable number, because it can be changed into a prime (561313) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6263 + ... + 6351.
It is an arithmetic number, because the mean of its divisors is an integer number (43740).
2561323 is an apocalyptic number.
561323 is a gapful number since it is divisible by the number (53) formed by its first and last digit.
561323 is a deficient number, since it is larger than the sum of its proper divisors (138517).
561323 is a wasteful number, since it uses less digits than its factorization.
561323 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 166.
The product of its digits is 540, while the sum is 20.
The square root of 561323 is about 749.2149224355.
The cubic root of 561323 is about 82.4905651898.
The spelling of 561323 in words is "five hundred sixty-one thousand, three hundred twenty-three".