125331520042055 has 16 divisors (see below), whose sum is σ = 163548667175040. Its totient is φ = 91816795602432.

The previous prime is 125331520042033. The next prime is 125331520042067. The reversal of 125331520042055 is 550240025133521.

It is a cyclic number.

It is not a de Polignac number, because 125331520042055 - 2¹⁶ = 125331519976519 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19925516735 + ... + 19925523024.

It is an arithmetic number, because the mean of its divisors is an integer number (10221791698440).

Almost surely, 2^{125331520042055} is an apocalyptic number.

125331520042055 is a deficient number, since it is larger than the sum of its proper divisors (38217147132985).

125331520042055 is a wasteful number, since it uses less digits than its factorization.

125331520042055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39851039818.

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 125331520042055 its reverse (550240025133521), we get a palindrome (675571545175576).

The spelling of 125331520042055 in words is "one hundred twenty-five trillion, three hundred thirty-one billion, five hundred twenty million, forty-two thousand, fifty-five".