2587257 has 12 divisors (see below), whose sum is σ = 3774784. Its totient is φ = 1707480.

The previous prime is 2587253. The next prime is 2587271. The reversal of 2587257 is 7527852.

It is not a de Polignac number, because 2587257 - 2² = 2587253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2587253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 469 + ... + 2322.

2^2587257 is an apocalyptic number.

It is an amenable number.

2587257 is a deficient number, since it is larger than the sum of its proper divisors (1187527).

2587257 is a wasteful number, since it uses less digits than its factorization.

2587257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900 (or 2897 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 2587257 is about 1608.4952595516. The cubic root of 2587257 is about 137.2818712253.

The spelling of 2587257 in words is "two million, five hundred eighty-seven thousand, two hundred fifty-seven".