56206217 has 2 divisors, whose sum is σ = 56206218. Its totient is φ = 56206216.

The previous prime is 56206211. The next prime is 56206223. The reversal of 56206217 is 71260265.

56206217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (56206211) and next prime (56206223).

It can be written as a sum of positive squares in only one way, i.e., 49336576 + 6869641 = 7024^2 + 2621^2 .

It is a cyclic number.

It is not a de Polignac number, because 56206217 - 2¹² = 56202121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56206217.

It is not a weakly prime, because it can be changed into another prime (56206211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28103108 + 28103109.

It is an arithmetic number, because the mean of its divisors is an integer number (28103109).

Almost surely, 2^56206217 is an apocalyptic number.

It is an amenable number.

56206217 is a deficient number, since it is larger than the sum of its proper divisors (1).

56206217 is an equidigital number, since it uses as much as digits as its factorization.

56206217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 56206217 is about 7497.0805651267. The cubic root of 56206217 is about 383.0552790569.

The spelling of 56206217 in words is "fifty-six million, two hundred six thousand, two hundred seventeen".