25653317 has 4 divisors (see below), whose sum is σ = 25698816. Its totient is φ = 25607820.

The previous prime is 25653307. The next prime is 25653343. The reversal of 25653317 is 71335652.

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 a cyclic number.

It is not a de Polignac number, because 25653317 - 2⁴ = 25653301 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 (25653307) 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 in 3 ways as a sum of consecutive naturals, for example, 21893 + ... + 23034.

It is an arithmetic number, because the mean of its divisors is an integer number (6424704).

Almost surely, 2^25653317 is an apocalyptic number.

It is an amenable number.

25653317 is a deficient number, since it is larger than the sum of its proper divisors (45499).

25653317 is an equidigital number, since it uses as much as digits as its factorization.

25653317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45498.

The product of its digits is 18900, while the sum is 32.

The square root of 25653317 is about 5064.9103644586. The cubic root of 25653317 is about 294.9269837484.

Adding to 25653317 its reverse (71335652), we get a palindrome (96988969).

The spelling of 25653317 in words is "twenty-five million, six hundred fifty-three thousand, three hundred seventeen".