12550447 has 18 divisors (see below), whose sum is σ = 15683832. Its totient is φ = 9833616.

The previous prime is 12550441. The next prime is 12550459. The reversal of 12550447 is 74405521.

It is not a de Polignac number, because 12550447 - 2¹⁵ = 12517679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12550441) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 121798 + ... + 121900.

It is an arithmetic number, because the mean of its divisors is an integer number (871324).

Almost surely, 2^12550447 is an apocalyptic number.

12550447 is a deficient number, since it is larger than the sum of its proper divisors (3133385).

12550447 is an equidigital number, since it uses as much as digits as its factorization.

12550447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 12550447 is about 3542.6610055155. The cubic root of 12550447 is about 232.3912282666.

Multiplying 12550447 by its sum of digits (28), we get a square (351412516 = 18746²).

Adding to 12550447 its reverse (74405521), we get a palindrome (86955968).

The spelling of 12550447 in words is "twelve million, five hundred fifty thousand, four hundred forty-seven".