5556217 has 2 divisors, whose sum is σ = 5556218. Its totient is φ = 5556216.

The previous prime is 5556211. The next prime is 5556233. The reversal of 5556217 is 7126555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5517801 + 38416 = 2349^2 + 196^2 .

It is a cyclic number.

It is not a de Polignac number, because 5556217 - 2³ = 5556209 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5556211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2778108 + 2778109.

It is an arithmetic number, because the mean of its divisors is an integer number (2778109).

Almost surely, 2^5556217 is an apocalyptic number.

It is an amenable number.

5556217 is a deficient number, since it is larger than the sum of its proper divisors (1).

5556217 is an equidigital number, since it uses as much as digits as its factorization.

5556217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10500, while the sum is 31.

The square root of 5556217 is about 2357.1629133346. The cubic root of 5556217 is about 177.1167901476.

The spelling of 5556217 in words is "five million, five hundred fifty-six thousand, two hundred seventeen".