75045505 has 8 divisors (see below), whose sum is σ = 90983592. Its totient is φ = 59417088.

The previous prime is 75045493. The next prime is 75045517. The reversal of 75045505 is 50554057.

It is an interprime number because it is at equal distance from previous prime (75045493) and next prime (75045517).

It can be written as a sum of positive squares in 4 ways, for example, as 5022081 + 70023424 = 2241^2 + 8368^2 .

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 75045505 - 2⁵ = 75045473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 76882 + ... + 77851.

It is an arithmetic number, because the mean of its divisors is an integer number (11372949).

Almost surely, 2^75045505 is an apocalyptic number.

It is an amenable number.

75045505 is a deficient number, since it is larger than the sum of its proper divisors (15938087).

75045505 is a wasteful number, since it uses less digits than its factorization.

75045505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154835.

The product of its (nonzero) digits is 17500, while the sum is 31.

The square root of 75045505 is about 8662.8808718578. The cubic root of 75045505 is about 421.8016051927.

The spelling of 75045505 in words is "seventy-five million, forty-five thousand, five hundred five".