2563217 has 2 divisors, whose sum is σ = 2563218. Its totient is φ = 2563216.

The previous prime is 2563207. The next prime is 2563229. The reversal of 2563217 is 7123652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2563201 + 16 = 1601^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 2563217 - 2⁶ = 2563153 is a prime.

It is equal to p₁₈₇₃₆₁ and since 2563217 and 187361 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2563207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281608 + 1281609.

It is an arithmetic number, because the mean of its divisors is an integer number (1281609).

2^2563217 is an apocalyptic number.

It is an amenable number.

2563217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2563217 is an equidigital number, since it uses as much as digits as its factorization.

2563217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 26.

The square root of 2563217 is about 1601.0049968692. The cubic root of 2563217 is about 136.8553537547.

Adding to 2563217 its reverse (7123652), we get a palindrome (9686869).

The spelling of 2563217 in words is "two million, five hundred sixty-three thousand, two hundred seventeen".