56111233 has 2 divisors, whose sum is σ = 56111234. Its totient is φ = 56111232.

The previous prime is 56111213. The next prime is 56111243. The reversal of 56111233 is 33211165.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42146064 + 13965169 = 6492^2 + 3737^2 .

It is a cyclic number.

It is not a de Polignac number, because 56111233 - 2⁹ = 56110721 is a prime.

It is not a weakly prime, because it can be changed into another prime (56111213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28055616 + 28055617.

It is an arithmetic number, because the mean of its divisors is an integer number (28055617).

Almost surely, 2^56111233 is an apocalyptic number.

It is an amenable number.

56111233 is a deficient number, since it is larger than the sum of its proper divisors (1).

56111233 is an equidigital number, since it uses as much as digits as its factorization.

56111233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 22.

The square root of 56111233 is about 7490.7431540535. The cubic root of 56111233 is about 382.8393798246.

Adding to 56111233 its reverse (33211165), we get a palindrome (89322398).

The spelling of 56111233 in words is "fifty-six million, one hundred eleven thousand, two hundred thirty-three".