25303252525 has 12 divisors (see below), whose sum is σ = 32043609792. Its totient is φ = 19811907440.

The previous prime is 25303252501. The next prime is 25303252529. The reversal of 25303252525 is 52525230352.

It is not a de Polignac number, because 25303252525 - 2⁷ = 25303252397 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 (25303252529) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 10766167 + ... + 10768516.

It is an arithmetic number, because the mean of its divisors is an integer number (2670300816).

Almost surely, 2^25303252525 is an apocalyptic number.

25303252525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25303252525 is a deficient number, since it is larger than the sum of its proper divisors (6740357267).

25303252525 is a wasteful number, since it uses less digits than its factorization.

25303252525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21534740 (or 21534735 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 34.

Adding to 25303252525 its reverse (52525230352), we get a palindrome (77828482877).

The spelling of 25303252525 in words is "twenty-five billion, three hundred three million, two hundred fifty-two thousand, five hundred twenty-five".