75255966 has 40 divisors (see below), whose sum is σ = 170162784. Its totient is φ = 24857280.

The previous prime is 75255949. The next prime is 75255967. The reversal of 75255966 is 66955257.

75255966 is a `hidden beast` number, since 7 + 52 + 5 + 596 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75255967) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 16251 + ... + 20361.

Almost surely, 2^75255966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75255966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85081392).

75255966 is an abundant number, since it is smaller than the sum of its proper divisors (94906818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75255966 is a wasteful number, since it uses less digits than its factorization.

75255966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4238 (or 4229 counting only the distinct ones).

The product of its digits is 567000, while the sum is 45.

The square root of 75255966 is about 8675.0196541564. The cubic root of 75255966 is about 422.1955436462.

The spelling of 75255966 in words is "seventy-five million, two hundred fifty-five thousand, nine hundred sixty-six".