125265252639 has 16 divisors (see below), whose sum is σ = 168223910400. Its totient is φ = 82909925280.

The previous prime is 125265252617. The next prime is 125265252647. The reversal of 125265252639 is 936252562521.

It is not a de Polignac number, because 125265252639 - 2¹² = 125265248543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125265252139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132694 + ... + 517820.

It is an arithmetic number, because the mean of its divisors is an integer number (10513994400).

Almost surely, 2^125265252639 is an apocalyptic number.

125265252639 is a deficient number, since it is larger than the sum of its proper divisors (42958657761).

125265252639 is a wasteful number, since it uses less digits than its factorization.

125265252639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385910.

The product of its digits is 1944000, while the sum is 48.

The spelling of 125265252639 in words is "one hundred twenty-five billion, two hundred sixty-five million, two hundred fifty-two thousand, six hundred thirty-nine".