2555317 has 2 divisors, whose sum is σ = 2555318. Its totient is φ = 2555316.

The previous prime is 2555309. The next prime is 2555347. The reversal of 2555317 is 7135552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2477476 + 77841 = 1574^2 + 279^2 .

It is a cyclic number.

It is not a de Polignac number, because 2555317 - 2³ = 2555309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2555347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277658 + 1277659.

It is an arithmetic number, because the mean of its divisors is an integer number (1277659).

2^2555317 is an apocalyptic number.

It is an amenable number.

2555317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555317 is an equidigital number, since it uses as much as digits as its factorization.

2555317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5250, while the sum is 28.

The square root of 2555317 is about 1598.5358926217. The cubic root of 2555317 is about 136.7146100548.

The spelling of 2555317 in words is "two million, five hundred fifty-five thousand, three hundred seventeen".