561622323 has 12 divisors (see below), whose sum is σ = 775545368. Its totient is φ = 361502400.

The previous prime is 561622309. The next prime is 561622333. The reversal of 561622323 is 323226165.

It is not a de Polignac number, because 561622323 - 2⁹ = 561621811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561622333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108778 + ... + 113823.

Almost surely, 2^561622323 is an apocalyptic number.

561622323 is a deficient number, since it is larger than the sum of its proper divisors (213923045).

561622323 is a wasteful number, since it uses less digits than its factorization.

561622323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222662 (or 222633 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 561622323 is about 23698.5721721795. The cubic root of 561622323 is about 825.0522516033.

Adding to 561622323 its reverse (323226165), we get a palindrome (884848488).

It can be divided in two parts, 56162 and 2323, that added together give a palindrome (58485).

The spelling of 561622323 in words is "five hundred sixty-one million, six hundred twenty-two thousand, three hundred twenty-three".