125109925173885 has 16 divisors (see below), whose sum is σ = 200176018903296. Its totient is φ = 66725247217728.

The previous prime is 125109925173881. The next prime is 125109925173889. The reversal of 125109925173885 is 588371529901521.

It is an interprime number because it is at equal distance from previous prime (125109925173881) and next prime (125109925173889).

It is not a de Polignac number, because 125109925173885 - 2² = 125109925173881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125109925173881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41828812 + ... + 44719898.

It is an arithmetic number, because the mean of its divisors is an integer number (12511001181456).

Almost surely, 2^{125109925173885} is an apocalyptic number.

125109925173885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125109925173885 is a deficient number, since it is larger than the sum of its proper divisors (75066093729411).

125109925173885 is a wasteful number, since it uses less digits than its factorization.

125109925173885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5776052.

The product of its (nonzero) digits is 54432000, while the sum is 66.

The spelling of 125109925173885 in words is "one hundred twenty-five trillion, one hundred nine billion, nine hundred twenty-five million, one hundred seventy-three thousand, eight hundred eighty-five".