125835261025 has 24 divisors (see below), whose sum is σ = 164552067200. Its totient is φ = 95193403200.

The previous prime is 125835260939. The next prime is 125835261127. The reversal of 125835261025 is 520162538521.

It is not a de Polignac number, because 125835261025 - 2⁹ = 125835260513 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 12136 + ... + 501814.

Almost surely, 2^125835261025 is an apocalyptic number.

It is an amenable number.

125835261025 is a deficient number, since it is larger than the sum of its proper divisors (38716806175).

125835261025 is a wasteful number, since it uses less digits than its factorization.

125835261025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490249 (or 490244 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 40.

Adding to 125835261025 its reverse (520162538521), we get a palindrome (645997799546).

The spelling of 125835261025 in words is "one hundred twenty-five billion, eight hundred thirty-five million, two hundred sixty-one thousand, twenty-five".