12505459 has 4 divisors (see below), whose sum is σ = 12525040. Its totient is φ = 12485880.

The previous prime is 12505457. The next prime is 12505481. The reversal of 12505459 is 95450521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95450521 = 1109 ⋅86069.

It is a cyclic number.

It is not a de Polignac number, because 12505459 - 2¹ = 12505457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12505459.

It is not an unprimeable number, because it can be changed into a prime (12505457) 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, 8799 + ... + 10120.

It is an arithmetic number, because the mean of its divisors is an integer number (3131260).

Almost surely, 2^12505459 is an apocalyptic number.

12505459 is a deficient number, since it is larger than the sum of its proper divisors (19581).

12505459 is an equidigital number, since it uses as much as digits as its factorization.

12505459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19580.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 12505459 is about 3536.3058408458. The cubic root of 12505459 is about 232.1132213416.

The spelling of 12505459 in words is "twelve million, five hundred five thousand, four hundred fifty-nine".