125532242235521 has 12 divisors (see below), whose sum is σ = 145243916638800. Its totient is φ = 108113892832440.

The previous prime is 125532242235493. The next prime is 125532242235553.

125532242235521 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-125532242235521 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125532242235571) 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, 27301485791 + ... + 27301490388.

It is an arithmetic number, because the mean of its divisors is an integer number (12103659719900).

Almost surely, 2^{125532242235521} is an apocalyptic number.

125532242235521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

125532242235521 is a deficient number, since it is larger than the sum of its proper divisors (19711674403279).

125532242235521 is a wasteful number, since it uses less digits than its factorization.

125532242235521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54602976220 (or 54602976209 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 44.

The spelling of 125532242235521 in words is "one hundred twenty-five trillion, five hundred thirty-two billion, two hundred forty-two million, two hundred thirty-five thousand, five hundred twenty-one".