75522009 has 8 divisors (see below), whose sum is σ = 101068672. Its totient is φ = 50161680.

The previous prime is 75522001. The next prime is 75522011. The reversal of 75522009 is 90022557.

It is a happy number.

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

It is not a de Polignac number, because 75522009 - 2³ = 75522001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75522001) 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 7 ways as a sum of consecutive naturals, for example, 45634 + ... + 47259.

It is an arithmetic number, because the mean of its divisors is an integer number (12633584).

Almost surely, 2^75522009 is an apocalyptic number.

It is an amenable number.

75522009 is a deficient number, since it is larger than the sum of its proper divisors (25546663).

75522009 is a wasteful number, since it uses less digits than its factorization.

75522009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93167.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 75522009 is about 8690.3399818419. The cubic root of 75522009 is about 422.6924702237.

The spelling of 75522009 in words is "seventy-five million, five hundred twenty-two thousand, nine".