12562505 has 4 divisors (see below), whose sum is σ = 15075012. Its totient is φ = 10050000.

The previous prime is 12562483. The next prime is 12562513. The reversal of 12562505 is 50526521.

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 1646089 + 10916416 = 1283^2 + 3304^2 .

It is not a de Polignac number, because 12562505 - 2¹⁰ = 12561481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1256246 + ... + 1256255.

It is an arithmetic number, because the mean of its divisors is an integer number (3768753).

Almost surely, 2^12562505 is an apocalyptic number.

It is an amenable number.

12562505 is a deficient number, since it is larger than the sum of its proper divisors (2512507).

12562505 is an equidigital number, since it uses as much as digits as its factorization.

12562505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512506.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 12562505 is about 3544.3624250350. The cubic root of 12562505 is about 232.4656287110.

The spelling of 12562505 in words is "twelve million, five hundred sixty-two thousand, five hundred five".