75205745 has 8 divisors (see below), whose sum is σ = 94170816. Its totient is φ = 57548656.

The previous prime is 75205733. The next prime is 75205751. The reversal of 75205745 is 54750257.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 75205745 - 2¹⁶ = 75140209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326867 + ... + 327096.

It is an arithmetic number, because the mean of its divisors is an integer number (11771352).

Almost surely, 2^75205745 is an apocalyptic number.

It is an amenable number.

75205745 is a deficient number, since it is larger than the sum of its proper divisors (18965071).

75205745 is a wasteful number, since it uses less digits than its factorization.

75205745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653991.

The product of its (nonzero) digits is 49000, while the sum is 35.

The square root of 75205745 is about 8672.1245955071. The cubic root of 75205745 is about 422.1016073477.

The spelling of 75205745 in words is "seventy-five million, two hundred five thousand, seven hundred forty-five".