25303252135 has 16 divisors (see below), whose sum is σ = 34704230400. Its totient is φ = 17349487776.

The previous prime is 25303252133. The next prime is 25303252159. The reversal of 25303252135 is 53125230352.

It is a cyclic number.

It is not a de Polignac number, because 25303252135 - 2¹ = 25303252133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25303252097 and 25303252106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25303252133) 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 15 ways as a sum of consecutive naturals, for example, 762826 + ... + 795304.

It is an arithmetic number, because the mean of its divisors is an integer number (2169014400).

Almost surely, 2^25303252135 is an apocalyptic number.

25303252135 is a deficient number, since it is larger than the sum of its proper divisors (9400978265).

25303252135 is a wasteful number, since it uses less digits than its factorization.

25303252135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54750.

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 25303252135 its reverse (53125230352), we get a palindrome (78428482487).

The spelling of 25303252135 in words is "twenty-five billion, three hundred three million, two hundred fifty-two thousand, one hundred thirty-five".