12525812 has 12 divisors (see below), whose sum is σ = 23606436. Its totient is φ = 5781120.

The previous prime is 12525811. The next prime is 12525817. The reversal of 12525812 is 21852521.

It can be written as a sum of positive squares in 2 ways, for example, as 3976036 + 8549776 = 1994^2 + 2924^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12525811) by changing a digit.

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, 120389 + ... + 120492.

It is an arithmetic number, because the mean of its divisors is an integer number (1967203).

Almost surely, 2^12525812 is an apocalyptic number.

It is an amenable number.

12525812 is a deficient number, since it is larger than the sum of its proper divisors (11080624).

12525812 is a wasteful number, since it uses less digits than its factorization.

12525812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240898 (or 240896 counting only the distinct ones).

The product of its digits is 1600, while the sum is 26.

The square root of 12525812 is about 3539.1823914571. The cubic root of 12525812 is about 232.2390767723.

The spelling of 12525812 in words is "twelve million, five hundred twenty-five thousand, eight hundred twelve".