2025021217 has 2 divisors, whose sum is σ = 2025021218. Its totient is φ = 2025021216.

The previous prime is 2025021169. The next prime is 2025021239. The reversal of 2025021217 is 7121205202.

It is an a-pointer prime, because the next prime (2025021239) can be obtained adding 2025021217 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1431562896 + 593458321 = 37836^2 + 24361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2025021217 is a prime.

It is a super-2 number, since 2×2025021217² = 8201421858600322178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2025021617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1012510608 + 1012510609.

It is an arithmetic number, because the mean of its divisors is an integer number (1012510609).

Almost surely, 2^2025021217 is an apocalyptic number.

It is an amenable number.

2025021217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2025021217 is an equidigital number, since it uses as much as digits as its factorization.

2025021217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 2025021217 is about 45000.2357438269. The cubic root of 2025021217 is about 1265.1534164831.

Adding to 2025021217 its reverse (7121205202), we get a palindrome (9146226419).

The spelling of 2025021217 in words is "two billion, twenty-five million, twenty-one thousand, two hundred seventeen".