12355503 has 4 divisors (see below), whose sum is σ = 16474008. Its totient is φ = 8237000.

The previous prime is 12355493. The next prime is 12355507. The reversal of 12355503 is 30555321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30555321 = 3 ⋅10185107.

It is a cyclic number.

It is not a de Polignac number, because 12355503 - 2⁵ = 12355471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12355507) 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, 2059248 + ... + 2059253.

It is an arithmetic number, because the mean of its divisors is an integer number (4118502).

Almost surely, 2^12355503 is an apocalyptic number.

12355503 is a deficient number, since it is larger than the sum of its proper divisors (4118505).

12355503 is an equidigital number, since it uses as much as digits as its factorization.

12355503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4118504.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 12355503 is about 3515.0395445855. The cubic root of 12355503 is about 231.1817126833.

The spelling of 12355503 in words is "twelve million, three hundred fifty-five thousand, five hundred three".