125520759105 has 64 divisors (see below), whose sum is σ = 247984934400. Its totient is φ = 54005532672.

The previous prime is 125520759083. The next prime is 125520759109. The reversal of 125520759105 is 501957025521.

It is not a de Polignac number, because 125520759105 - 2⁸ = 125520758849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125520759109) 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 63 ways as a sum of consecutive naturals, for example, 630084 + ... + 805013.

It is an arithmetic number, because the mean of its divisors is an integer number (3874764600).

Almost surely, 2^125520759105 is an apocalyptic number.

125520759105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125520759105 is a deficient number, since it is larger than the sum of its proper divisors (122464175295).

125520759105 is a wasteful number, since it uses less digits than its factorization.

125520759105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435143 (or 1435129 counting only the distinct ones).

The product of its (nonzero) digits is 157500, while the sum is 42.

The spelling of 125520759105 in words is "one hundred twenty-five billion, five hundred twenty million, seven hundred fifty-nine thousand, one hundred five".