25258417 has 2 divisors, whose sum is σ = 25258418. Its totient is φ = 25258416.

The previous prime is 25258403. The next prime is 25258427. The reversal of 25258417 is 71485252.

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., 19088161 + 6170256 = 4369^2 + 2484^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25258417 is a prime.

It is not a weakly prime, because it can be changed into another prime (25258427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12629208 + 12629209.

It is an arithmetic number, because the mean of its divisors is an integer number (12629209).

Almost surely, 2^25258417 is an apocalyptic number.

It is an amenable number.

25258417 is a deficient number, since it is larger than the sum of its proper divisors (1).

25258417 is an equidigital number, since it uses as much as digits as its factorization.

25258417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22400, while the sum is 34.

The square root of 25258417 is about 5025.7752635787. The cubic root of 25258417 is about 293.4058101155.

The spelling of 25258417 in words is "twenty-five million, two hundred fifty-eight thousand, four hundred seventeen".