25024217 has 2 divisors, whose sum is σ = 25024218. Its totient is φ = 25024216.

The previous prime is 25024199. The next prime is 25024229. The reversal of 25024217 is 71242052.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20939776 + 4084441 = 4576^2 + 2021^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25024217 is a prime.

It is a super-2 number, since 2×25024217² = 1252422872926178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25024192 and 25024201.

It is not a weakly prime, because it can be changed into another prime (25020217) 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, 12512108 + 12512109.

It is an arithmetic number, because the mean of its divisors is an integer number (12512109).

Almost surely, 2^25024217 is an apocalyptic number.

It is an amenable number.

25024217 is a deficient number, since it is larger than the sum of its proper divisors (1).

25024217 is an equidigital number, since it uses as much as digits as its factorization.

25024217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 25024217 is about 5002.4211138208. The cubic root of 25024217 is about 292.4961579353.

Adding to 25024217 its reverse (71242052), we get a palindrome (96266269).

The spelling of 25024217 in words is "twenty-five million, twenty-four thousand, two hundred seventeen".