12550217 has 8 divisors (see below), whose sum is σ = 12719616. Its totient is φ = 12382272.

The previous prime is 12550183. The next prime is 12550229. The reversal of 12550217 is 71205521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12550217 - 2²⁰ = 11501641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12550192 and 12550201.

It is not an unprimeable number, because it can be changed into a prime (12550247) 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 in 7 ways as a sum of consecutive naturals, for example, 37073 + ... + 37409.

It is an arithmetic number, because the mean of its divisors is an integer number (1589952).

Almost surely, 2^12550217 is an apocalyptic number.

It is an amenable number.

12550217 is a deficient number, since it is larger than the sum of its proper divisors (169399).

12550217 is a wasteful number, since it uses less digits than its factorization.

12550217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 12550217 is about 3542.6285438922. The cubic root of 12550217 is about 232.3898086543.

Adding to 12550217 its reverse (71205521), we get a palindrome (83755738).

The spelling of 12550217 in words is "twelve million, five hundred fifty thousand, two hundred seventeen".