12550047 has 4 divisors (see below), whose sum is σ = 16733400. Its totient is φ = 8366696.

The previous prime is 12550033. The next prime is 12550049. The reversal of 12550047 is 74005521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74005521 = 3 ⋅24668507.

It is a cyclic number.

It is not a de Polignac number, because 12550047 - 2¹⁴ = 12533663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12549999 and 12550026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12550049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2091672 + ... + 2091677.

It is an arithmetic number, because the mean of its divisors is an integer number (4183350).

Almost surely, 2^12550047 is an apocalyptic number.

12550047 is a deficient number, since it is larger than the sum of its proper divisors (4183353).

12550047 is an equidigital number, since it uses as much as digits as its factorization.

12550047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4183352.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 12550047 is about 3542.6045503273. The cubic root of 12550047 is about 232.3887593644.

Adding to 12550047 its reverse (74005521), we get a palindrome (86555568).

The spelling of 12550047 in words is "twelve million, five hundred fifty thousand, forty-seven".