7500505 has 4 divisors (see below), whose sum is σ = 9000612. Its totient is φ = 6000400.

The previous prime is 7500491. The next prime is 7500539. The reversal of 7500505 is 5050057.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5050057 = 149 ⋅33893.

It can be written as a sum of positive squares in 2 ways, for example, as 4613904 + 2886601 = 2148^2 + 1699^2 .

It is not a de Polignac number, because 7500505 - 2¹³ = 7492313 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750046 + ... + 750055.

It is an arithmetic number, because the mean of its divisors is an integer number (2250153).

Almost surely, 2^7500505 is an apocalyptic number.

It is an amenable number.

7500505 is a deficient number, since it is larger than the sum of its proper divisors (1500107).

7500505 is a wasteful number, since it uses less digits than its factorization.

7500505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500106.

The product of its (nonzero) digits is 875, while the sum is 22.

The square root of 7500505 is about 2738.7049859377. The cubic root of 7500505 is about 195.7477753113.

The spelling of 7500505 in words is "seven million, five hundred thousand, five hundred five".