25009417 has 2 divisors, whose sum is σ = 25009418. Its totient is φ = 25009416.

The previous prime is 25009403. The next prime is 25009421. The reversal of 25009417 is 71490052.

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., 21261321 + 3748096 = 4611^2 + 1936^2 .

It is a cyclic number.

It is not a de Polignac number, because 25009417 - 2¹¹ = 25007369 is a prime.

It is not a weakly prime, because it can be changed into another prime (25009427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12504708 + 12504709.

It is an arithmetic number, because the mean of its divisors is an integer number (12504709).

Almost surely, 2^25009417 is an apocalyptic number.

It is an amenable number.

25009417 is a deficient number, since it is larger than the sum of its proper divisors (1).

25009417 is an equidigital number, since it uses as much as digits as its factorization.

25009417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 25009417 is about 5000.9416113368. The cubic root of 25009417 is about 292.4384831792.

Adding to 25009417 its reverse (71490052), we get a palindrome (96499469).

The spelling of 25009417 in words is "twenty-five million, nine thousand, four hundred seventeen".