75425666 has 8 divisors (see below), whose sum is σ = 116788224. Its totient is φ = 36496260.

The previous prime is 75425657. The next prime is 75425677. The reversal of 75425666 is 66652457.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608210 + ... + 608333.

It is an arithmetic number, because the mean of its divisors is an integer number (14598528).

Almost surely, 2^75425666 is an apocalyptic number.

75425666 is a deficient number, since it is larger than the sum of its proper divisors (41362558).

75425666 is a wasteful number, since it uses less digits than its factorization.

75425666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216576.

The product of its digits is 302400, while the sum is 41.

The square root of 75425666 is about 8684.7951040885. The cubic root of 75425666 is about 422.5126516058.

The spelling of 75425666 in words is "seventy-five million, four hundred twenty-five thousand, six hundred sixty-six".