12525569 has 4 divisors (see below), whose sum is σ = 14314944. Its totient is φ = 10736196.

The previous prime is 12525563. The next prime is 12525587. The reversal of 12525569 is 96552521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96552521 = 13 ⋅7427117.

It is a cyclic number.

It is not a de Polignac number, because 12525569 - 2¹² = 12521473 is a prime.

It is a super-2 number, since 2×12525569² = 313779757547522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12525563) 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, 894677 + ... + 894690.

It is an arithmetic number, because the mean of its divisors is an integer number (3578736).

It is a Proth number, since it is equal to 1529 ⋅ 2¹³ + 1 and 1529 < 2¹³.

Almost surely, 2^12525569 is an apocalyptic number.

It is an amenable number.

12525569 is a deficient number, since it is larger than the sum of its proper divisors (1789375).

12525569 is an equidigital number, since it uses as much as digits as its factorization.

12525569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789374.

The product of its digits is 27000, while the sum is 35.

The square root of 12525569 is about 3539.1480613278. The cubic root of 12525569 is about 232.2375749545.

The spelling of 12525569 in words is "twelve million, five hundred twenty-five thousand, five hundred sixty-nine".