12506033 has 4 divisors (see below), whose sum is σ = 13241700. Its totient is φ = 11770368.

The previous prime is 12506029. The next prime is 12506041. The reversal of 12506033 is 33060521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33060521 = 13 ⋅2543117.

It can be written as a sum of positive squares in 2 ways, for example, as 11235904 + 1270129 = 3352^2 + 1127^2 .

It is a cyclic number.

It is not a de Polignac number, because 12506033 - 2² = 12506029 is a prime.

It is a super-2 number, since 2×12506033² = 312801722794178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12505996 and 12506014.

It is not an unprimeable number, because it can be changed into a prime (12506003) 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, 367808 + ... + 367841.

It is an arithmetic number, because the mean of its divisors is an integer number (3310425).

Almost surely, 2^12506033 is an apocalyptic number.

It is an amenable number.

12506033 is a deficient number, since it is larger than the sum of its proper divisors (735667).

12506033 is an equidigital number, since it uses as much as digits as its factorization.

12506033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735666.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 12506033 is about 3536.3869980532. The cubic root of 12506033 is about 232.1167726161.

Adding to 12506033 its reverse (33060521), we get a palindrome (45566554).

The spelling of 12506033 in words is "twelve million, five hundred six thousand, thirty-three".