25323220325 has 48 divisors (see below), whose sum is σ = 35399734272. Its totient is φ = 17841600000.

The previous prime is 25323220309. The next prime is 25323220331. The reversal of 25323220325 is 52302232352.

It is a happy number.

It is not a de Polignac number, because 25323220325 - 2⁴ = 25323220309 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 697625 + ... + 733025.

It is an arithmetic number, because the mean of its divisors is an integer number (737494464).

Almost surely, 2^25323220325 is an apocalyptic number.

25323220325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25323220325 is a deficient number, since it is larger than the sum of its proper divisors (10076513947).

25323220325 is a wasteful number, since it uses less digits than its factorization.

25323220325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35526 (or 35521 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 29.

Adding to 25323220325 its reverse (52302232352), we get a palindrome (77625452677).

The spelling of 25323220325 in words is "twenty-five billion, three hundred twenty-three million, two hundred twenty thousand, three hundred twenty-five".