12650515 has 4 divisors (see below), whose sum is σ = 15180624. Its totient is φ = 10120408.

The previous prime is 12650513. The next prime is 12650537. The reversal of 12650515 is 51505621.

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

It is a cyclic number.

It is not a de Polignac number, because 12650515 - 2¹ = 12650513 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 12650515.

It is not an unprimeable number, because it can be changed into a prime (12650513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1265047 + ... + 1265056.

It is an arithmetic number, because the mean of its divisors is an integer number (3795156).

Almost surely, 2^12650515 is an apocalyptic number.

12650515 is a deficient number, since it is larger than the sum of its proper divisors (2530109).

12650515 is an equidigital number, since it uses as much as digits as its factorization.

12650515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530108.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 12650515 is about 3556.7562469194. The cubic root of 12650515 is about 233.0072326710.

The spelling of 12650515 in words is "twelve million, six hundred fifty thousand, five hundred fifteen".