75518066 has 8 divisors (see below), whose sum is σ = 121990764. Its totient is φ = 34854480.

The previous prime is 75518033. The next prime is 75518071. The reversal of 75518066 is 66081557.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 60918025 + 14600041 = 7805^2 + 3821^2 .

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, 1452245 + ... + 1452296.

Almost surely, 2^75518066 is an apocalyptic number.

75518066 is a deficient number, since it is larger than the sum of its proper divisors (46472698).

75518066 is a wasteful number, since it uses less digits than its factorization.

75518066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904556.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 75518066 is about 8690.1131177908. The cubic root of 75518066 is about 422.6851138453.

The spelling of 75518066 in words is "seventy-five million, five hundred eighteen thousand, sixty-six".