12504533 has 2 divisors, whose sum is σ = 12504534. Its totient is φ = 12504532.

The previous prime is 12504523. The next prime is 12504551. The reversal of 12504533 is 33540521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8334769 + 4169764 = 2887^2 + 2042^2 .

It is a cyclic number.

It is not a de Polignac number, because 12504533 - 2⁴ = 12504517 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12504499 and 12504508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12504523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6252266 + 6252267.

It is an arithmetic number, because the mean of its divisors is an integer number (6252267).

Almost surely, 2^12504533 is an apocalyptic number.

It is an amenable number.

12504533 is a deficient number, since it is larger than the sum of its proper divisors (1).

12504533 is an equidigital number, since it uses as much as digits as its factorization.

12504533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 12504533 is about 3536.1749108323. The cubic root of 12504533 is about 232.1074920531.

The spelling of 12504533 in words is "twelve million, five hundred four thousand, five hundred thirty-three".