12533305 has 4 divisors (see below), whose sum is σ = 15039972. Its totient is φ = 10026640.

The previous prime is 12533299. The next prime is 12533309. The reversal of 12533305 is 50333521.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2948089 + 9585216 = 1717^2 + 3096^2 .

It is not a de Polignac number, because 12533305 - 2¹³ = 12525113 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12533309) 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, 1253326 + ... + 1253335.

It is an arithmetic number, because the mean of its divisors is an integer number (3759993).

Almost surely, 2^12533305 is an apocalyptic number.

It is an amenable number.

12533305 is a deficient number, since it is larger than the sum of its proper divisors (2506667).

12533305 is an equidigital number, since it uses as much as digits as its factorization.

12533305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506666.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 12533305 is about 3540.2408110184. The cubic root of 12533305 is about 232.2853763795.

Adding to 12533305 its reverse (50333521), we get a palindrome (62866826).

The spelling of 12533305 in words is "twelve million, five hundred thirty-three thousand, three hundred five".