2567257 has 18 divisors (see below), whose sum is σ = 3290154. Its totient is φ = 1995840.

The previous prime is 2567233. The next prime is 2567269. The reversal of 2567257 is 7527652.

It is a happy number.

2567257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1713481 + 853776 = 1309^2 + 924^2 .

It is not a de Polignac number, because 2567257 - 2⁷ = 2567129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2567287) 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 in 17 ways as a sum of consecutive naturals, for example, 5713 + ... + 6145.

2^2567257 is an apocalyptic number.

It is an amenable number.

2567257 is a deficient number, since it is larger than the sum of its proper divisors (722897).

2567257 is a wasteful number, since it uses less digits than its factorization.

2567257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 451 counting only the distinct ones).

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

The square root of 2567257 is about 1602.2662075947. The cubic root of 2567257 is about 136.9272172764.

The spelling of 2567257 in words is "two million, five hundred sixty-seven thousand, two hundred fifty-seven".