12550117 has 4 divisors (see below), whose sum is σ = 12564396. Its totient is φ = 12535840.

The previous prime is 12550099. The next prime is 12550123. The reversal of 12550117 is 71105521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71105521 = 41 ⋅1734281.

It can be written as a sum of positive squares in 2 ways, for example, as 5612161 + 6937956 = 2369^2 + 2634^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12550117 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 (12550147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5728 + ... + 7609.

It is an arithmetic number, because the mean of its divisors is an integer number (3141099).

Almost surely, 2^12550117 is an apocalyptic number.

It is an amenable number.

12550117 is a deficient number, since it is larger than the sum of its proper divisors (14279).

12550117 is an equidigital number, since it uses as much as digits as its factorization.

12550117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14278.

The product of its (nonzero) digits is 350, while the sum is 22.

The square root of 12550117 is about 3542.6144300502. The cubic root of 12550117 is about 232.3891914261.

Adding to 12550117 its reverse (71105521), we get a palindrome (83655638).

The spelling of 12550117 in words is "twelve million, five hundred fifty thousand, one hundred seventeen".