25480317 has 4 divisors (see below), whose sum is σ = 33973760. Its totient is φ = 16986876.

The previous prime is 25480313. The next prime is 25480319. The reversal of 25480317 is 71308452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 25480317 - 2² = 25480313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25480313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4246717 + ... + 4246722.

It is an arithmetic number, because the mean of its divisors is an integer number (8493440).

Almost surely, 2^25480317 is an apocalyptic number.

It is an amenable number.

25480317 is a deficient number, since it is larger than the sum of its proper divisors (8493443).

25480317 is an equidigital number, since it uses as much as digits as its factorization.

25480317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8493442.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 25480317 is about 5047.8031855452. The cubic root of 25480317 is about 294.2625148461.

Adding to 25480317 its reverse (71308452), we get a palindrome (96788769).

The spelling of 25480317 in words is "twenty-five million, four hundred eighty thousand, three hundred seventeen".