12025217 has 4 divisors (see below), whose sum is σ = 12190020. Its totient is φ = 11860416.

The previous prime is 12025183. The next prime is 12025229. The reversal of 12025217 is 71252021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71252021 = 67 ⋅1063463.

It can be written as a sum of positive squares in 2 ways, for example, as 6270016 + 5755201 = 2504^2 + 2399^2 .

It is a cyclic number.

It is not a de Polignac number, because 12025217 - 2¹⁶ = 11959681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12025267) 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, 82292 + ... + 82437.

It is an arithmetic number, because the mean of its divisors is an integer number (3047505).

Almost surely, 2^12025217 is an apocalyptic number.

It is an amenable number.

12025217 is a deficient number, since it is larger than the sum of its proper divisors (164803).

12025217 is an equidigital number, since it uses as much as digits as its factorization.

12025217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164802.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 12025217 is about 3467.7394654155. The cubic root of 12025217 is about 229.1031044141.

Adding to 12025217 its reverse (71252021), we get a palindrome (83277238).

The spelling of 12025217 in words is "twelve million, twenty-five thousand, two hundred seventeen".