75305506 has 8 divisors (see below), whose sum is σ = 113195520. Its totient is φ = 37573668.

The previous prime is 75305459. The next prime is 75305507. The reversal of 75305506 is 60550357.

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

It is not an unprimeable number, because it can be changed into a prime (75305507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38346 + ... + 40261.

It is an arithmetic number, because the mean of its divisors is an integer number (14149440).

Almost surely, 2^75305506 is an apocalyptic number.

75305506 is a deficient number, since it is larger than the sum of its proper divisors (37890014).

75305506 is a wasteful number, since it uses less digits than its factorization.

75305506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79088.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 75305506 is about 8677.8745093485. The cubic root of 75305506 is about 422.2881652262.

The spelling of 75305506 in words is "seventy-five million, three hundred five thousand, five hundred six".