56206223 has 2 divisors, whose sum is σ = 56206224. Its totient is φ = 56206222.

The previous prime is 56206217. The next prime is 56206247. The reversal of 56206223 is 32260265.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56206223 - 2¹⁸ = 55944079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56206192 and 56206201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56206253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28103111 + 28103112.

It is an arithmetic number, because the mean of its divisors is an integer number (28103112).

Almost surely, 2^56206223 is an apocalyptic number.

56206223 is a deficient number, since it is larger than the sum of its proper divisors (1).

56206223 is an equidigital number, since it uses as much as digits as its factorization.

56206223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 56206223 is about 7497.0809652824. The cubic root of 56206223 is about 383.0552926873.

Adding to 56206223 its reverse (32260265), we get a palindrome (88466488).

The spelling of 56206223 in words is "fifty-six million, two hundred six thousand, two hundred twenty-three".