56712233 has 4 divisors (see below), whose sum is σ = 56727300. Its totient is φ = 56697168.

The previous prime is 56712209. The next prime is 56712239. The reversal of 56712233 is 33221765.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 33547264 + 23164969 = 5792^2 + 4813^2 .

It is a cyclic number.

It is not a de Polignac number, because 56712233 - 2¹⁰ = 56711209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56712196 and 56712205.

It is not an unprimeable number, because it can be changed into a prime (56712239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3491 + ... + 11207.

It is an arithmetic number, because the mean of its divisors is an integer number (14181825).

Almost surely, 2^56712233 is an apocalyptic number.

It is an amenable number.

56712233 is a deficient number, since it is larger than the sum of its proper divisors (15067).

56712233 is an equidigital number, since it uses as much as digits as its factorization.

56712233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15066.

The product of its digits is 7560, while the sum is 29.

The square root of 56712233 is about 7530.7524856418. The cubic root of 56712233 is about 384.2013759486.

Adding to 56712233 its reverse (33221765), we get a palindrome (89933998).

The spelling of 56712233 in words is "fifty-six million, seven hundred twelve thousand, two hundred thirty-three".