75666875 has 10 divisors (see below), whose sum is σ = 94554108. Its totient is φ = 60533000.

The previous prime is 75666839. The next prime is 75666883. The reversal of 75666875 is 57866657.

It is a happy number.

It is not a de Polignac number, because 75666875 - 2¹² = 75662779 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 (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 59909 + ... + 61158.

Almost surely, 2^75666875 is an apocalyptic number.

75666875 is a deficient number, since it is larger than the sum of its proper divisors (18887233).

75666875 is an equidigital number, since it uses as much as digits as its factorization.

75666875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121087 (or 121072 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 50.

The square root of 75666875 is about 8698.6708754844. The cubic root of 75666875 is about 422.9625665708.

It can be divided in two parts, 7566 and 6875, that added together give a palindrome (14441).

The spelling of 75666875 in words is "seventy-five million, six hundred sixty-six thousand, eight hundred seventy-five".