25244225305 has 16 divisors (see below), whose sum is σ = 32630923584. Its totient is φ = 18637536960.

The previous prime is 25244225297. The next prime is 25244225317. The reversal of 25244225305 is 50352244252.

It is not a de Polignac number, because 25244225305 - 2³ = 25244225297 is a prime.

It is a super-2 number, since 2×25244225305² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 249870 + ... + 336040.

It is an arithmetic number, because the mean of its divisors is an integer number (2039432724).

Almost surely, 2^25244225305 is an apocalyptic number.

It is an amenable number.

25244225305 is a deficient number, since it is larger than the sum of its proper divisors (7386698279).

25244225305 is a wasteful number, since it uses less digits than its factorization.

25244225305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90696.

The product of its (nonzero) digits is 96000, while the sum is 34.

Adding to 25244225305 its reverse (50352244252), we get a palindrome (75596469557).

The spelling of 25244225305 in words is "twenty-five billion, two hundred forty-four million, two hundred twenty-five thousand, three hundred five".