12325556 has 6 divisors (see below), whose sum is σ = 21569730. Its totient is φ = 6162776.

The previous prime is 12325553. The next prime is 12325567. The reversal of 12325556 is 65552321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11115556 + 1210000 = 3334^2 + 1100^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12325553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1540691 + ... + 1540698.

It is an arithmetic number, because the mean of its divisors is an integer number (3594955).

Almost surely, 2^12325556 is an apocalyptic number.

It is an amenable number.

12325556 is a deficient number, since it is larger than the sum of its proper divisors (9244174).

12325556 is a wasteful number, since it uses less digits than its factorization.

12325556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081393 (or 3081391 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 12325556 is about 3510.7771219489. Note that the first 3 decimals coincide. The cubic root of 12325556 is about 230.9947838380.

Adding to 12325556 its reverse (65552321), we get a palindrome (77877877).

The spelling of 12325556 in words is "twelve million, three hundred twenty-five thousand, five hundred fifty-six".