2657257 has 2 divisors, whose sum is σ = 2657258. Its totient is φ = 2657256.

The previous prime is 2657243. The next prime is 2657279. The reversal of 2657257 is 7527562.

It is a happy number.

2657257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2637376 + 19881 = 1624^2 + 141^2 .

It is a cyclic number.

It is not a de Polignac number, because 2657257 - 2⁷ = 2657129 is a prime.

It is a super-2 number, since 2×2657257² = 14122029528098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2657657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328628 + 1328629.

It is an arithmetic number, because the mean of its divisors is an integer number (1328629).

2^2657257 is an apocalyptic number.

It is an amenable number.

2657257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2657257 is an equidigital number, since it uses as much as digits as its factorization.

2657257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 34.

The square root of 2657257 is about 1630.1095055241. The cubic root of 2657257 is about 138.5089551830.

The spelling of 2657257 in words is "two million, six hundred fifty-seven thousand, two hundred fifty-seven".