12557035 has 4 divisors (see below), whose sum is σ = 15068448. Its totient is φ = 10045624.

The previous prime is 12557021. The next prime is 12557053. The reversal of 12557035 is 53075521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53075521 = 409 ⋅129769.

It is a cyclic number.

It is not a de Polignac number, because 12557035 - 2¹⁹ = 12032747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12556994 and 12557012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255699 + ... + 1255708.

It is an arithmetic number, because the mean of its divisors is an integer number (3767112).

Almost surely, 2^12557035 is an apocalyptic number.

12557035 is a deficient number, since it is larger than the sum of its proper divisors (2511413).

12557035 is an equidigital number, since it uses as much as digits as its factorization.

12557035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511412.

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

The square root of 12557035 is about 3543.5906930683. The cubic root of 12557035 is about 232.4318835412.

The spelling of 12557035 in words is "twelve million, five hundred fifty-seven thousand, thirty-five".