75131375125 has 8 divisors (see below), whose sum is σ = 93763956312. Its totient is φ = 60105100000.

The previous prime is 75131375113. The next prime is 75131375129. The reversal of 75131375125 is 52157313157.

It can be written as a sum of positive squares in 4 ways, for example, as 1661521 + 75129713604 = 1289^2 + 274098^2 .

It is not a de Polignac number, because 75131375125 - 2⁵ = 75131375093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75131375129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300525376 + ... + 300525625.

It is an arithmetic number, because the mean of its divisors is an integer number (11720494539).

Almost surely, 2^75131375125 is an apocalyptic number.

It is an amenable number.

75131375125 is a deficient number, since it is larger than the sum of its proper divisors (18632581187).

75131375125 is an equidigital number, since it uses as much as digits as its factorization.

75131375125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601051016 (or 601051006 counting only the distinct ones).

The product of its digits is 110250, while the sum is 40.

The spelling of 75131375125 in words is "seventy-five billion, one hundred thirty-one million, three hundred seventy-five thousand, one hundred twenty-five".