561112233 has 16 divisors (see below), whose sum is σ = 817311936. Its totient is φ = 339589440.

The previous prime is 561112229. The next prime is 561112241. The reversal of 561112233 is 332211165.

It is not a de Polignac number, because 561112233 - 2² = 561112229 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561112033) 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, 12591 + ... + 35787.

It is an arithmetic number, because the mean of its divisors is an integer number (51081996).

Almost surely, 2^561112233 is an apocalyptic number.

It is an amenable number.

561112233 is a deficient number, since it is larger than the sum of its proper divisors (256199703).

561112233 is a wasteful number, since it uses less digits than its factorization.

561112233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23944.

The product of its digits is 1080, while the sum is 24.

The square root of 561112233 is about 23687.8076866560. The cubic root of 561112233 is about 824.8023930763.

Adding to 561112233 its reverse (332211165), we get a palindrome (893323398).

The spelling of 561112233 in words is "five hundred sixty-one million, one hundred twelve thousand, two hundred thirty-three".