2216057 has 2 divisors, whose sum is σ = 2216058.
Its totient is φ = 2216056.
The previous prime is 2216047. The next prime is 2216083. The reversal of 2216057 is 7506122.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1142761 + 1073296 = 1069^2 + 1036^2
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2216057 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (2216047) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108028 + 1108029.
It is an arithmetic number, because the mean of its divisors is an integer number (1108029).
22216057 is an apocalyptic number.
It is an amenable number.
2216057 is a deficient number, since it is larger than the sum of its proper divisors (1).
2216057 is an equidigital number, since it uses as much as digits as its factorization.
2216057 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 840, while the sum is 23.
The square root of 2216057 is about 1488.6426703544.
The cubic root of 2216057 is about 130.3747961188.
The spelling of 2216057 in words is "two million, two hundred sixteen thousand, fifty-seven".