25244225315 has 4 divisors (see below), whose sum is σ = 30293070384. Its totient is φ = 20195380248.

The previous prime is 25244225297. The next prime is 25244225317. The reversal of 25244225315 is 51352244252.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25244225315 - 2¹⁶ = 25244159779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25244225317) 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 in 3 ways as a sum of consecutive naturals, for example, 2524422527 + ... + 2524422536.

It is an arithmetic number, because the mean of its divisors is an integer number (7573267596).

Almost surely, 2^25244225315 is an apocalyptic number.

25244225315 is a deficient number, since it is larger than the sum of its proper divisors (5048845069).

25244225315 is an equidigital number, since it uses as much as digits as its factorization.

25244225315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5048845068.

The product of its digits is 96000, while the sum is 35.

Adding to 25244225315 its reverse (51352244252), we get a palindrome (76596469567).

The spelling of 25244225315 in words is "twenty-five billion, two hundred forty-four million, two hundred twenty-five thousand, three hundred fifteen".