75756172725 has 48 divisors (see below), whose sum is σ = 139200882240. Its totient is φ = 40393425600.

The previous prime is 75756172703. The next prime is 75756172729. The reversal of 75756172725 is 52727165757.

75756172725 is a `hidden beast` number, since 7 + 5 + 7 + 561 + 7 + 2 + 72 + 5 = 666.

It is not a de Polignac number, because 75756172725 - 2⁹ = 75756172213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75756172729) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3371227 + ... + 3393623.

It is an arithmetic number, because the mean of its divisors is an integer number (2900018380).

Almost surely, 2^75756172725 is an apocalyptic number.

75756172725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75756172725 is a deficient number, since it is larger than the sum of its proper divisors (63444709515).

75756172725 is a wasteful number, since it uses less digits than its factorization.

75756172725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27427 (or 27416 counting only the distinct ones).

The product of its digits is 7203000, while the sum is 54.

The spelling of 75756172725 in words is "seventy-five billion, seven hundred fifty-six million, one hundred seventy-two thousand, seven hundred twenty-five".