75075750625 has 20 divisors (see below), whose sum is σ = 99333181332. Its totient is φ = 56527616000.

The previous prime is 75075750613. The next prime is 75075750677. The reversal of 75075750625 is 52605757057.

It can be written as a sum of positive squares in 10 ways, for example, as 49266685521 + 25809065104 = 221961^2 + 160652^2 .

It is a de Polignac number, because none of the positive numbers 2^k-75075750625 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 3522352 + ... + 3543601.

Almost surely, 2^75075750625 is an apocalyptic number.

It is an amenable number.

75075750625 is a deficient number, since it is larger than the sum of its proper divisors (24257430707).

75075750625 is an equidigital number, since it uses as much as digits as its factorization.

75075750625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7065990 (or 7065975 counting only the distinct ones).

The product of its (nonzero) digits is 2572500, while the sum is 49.

The spelling of 75075750625 in words is "seventy-five billion, seventy-five million, seven hundred fifty thousand, six hundred twenty-five".