12557323 has 4 divisors (see below), whose sum is σ = 12569368. Its totient is φ = 12545280.

The previous prime is 12557317. The next prime is 12557417. The reversal of 12557323 is 32375521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12557323 - 2⁵ = 12557291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12557291 and 12557300.

It is not an unprimeable number, because it can be changed into a prime (12557723) 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, 4293 + ... + 6598.

It is an arithmetic number, because the mean of its divisors is an integer number (3142342).

Almost surely, 2^12557323 is an apocalyptic number.

12557323 is a deficient number, since it is larger than the sum of its proper divisors (12045).

12557323 is a wasteful number, since it uses less digits than its factorization.

12557323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12044.

The product of its digits is 6300, while the sum is 28.

The square root of 12557323 is about 3543.6313295827. The cubic root of 12557323 is about 232.4336604965.

It can be divided in two parts, 12557 and 323, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 12557323 in words is "twelve million, five hundred fifty-seven thousand, three hundred twenty-three".