12582257 has 4 divisors (see below), whose sum is σ = 12922356. Its totient is φ = 12242160.

The previous prime is 12582247. The next prime is 12582263. The reversal of 12582257 is 75228521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75228521 = 8237 ⋅9133.

It can be written as a sum of positive squares in 2 ways, for example, as 11806096 + 776161 = 3436^2 + 881^2 .

It is a cyclic number.

It is not a de Polignac number, because 12582257 - 2¹² = 12578161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12582247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169994 + ... + 170067.

It is an arithmetic number, because the mean of its divisors is an integer number (3230589).

Almost surely, 2^12582257 is an apocalyptic number.

It is an amenable number.

12582257 is a deficient number, since it is larger than the sum of its proper divisors (340099).

12582257 is an equidigital number, since it uses as much as digits as its factorization.

12582257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340098.

The product of its digits is 11200, while the sum is 32.

The square root of 12582257 is about 3547.1477274001. The cubic root of 12582257 is about 232.5873999849.

The spelling of 12582257 in words is "twelve million, five hundred eighty-two thousand, two hundred fifty-seven".