7975505 has 4 divisors (see below), whose sum is σ = 9570612. Its totient is φ = 6380400.

The previous prime is 7975483. The next prime is 7975507. The reversal of 7975505 is 5055797.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5055797 = 359 ⋅14083.

It can be written as a sum of positive squares in 2 ways, for example, as 2808976 + 5166529 = 1676^2 + 2273^2 .

It is not a de Polignac number, because 7975505 - 2¹⁰ = 7974481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7975507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 797546 + ... + 797555.

It is an arithmetic number, because the mean of its divisors is an integer number (2392653).

Almost surely, 2^7975505 is an apocalyptic number.

It is an amenable number.

7975505 is a deficient number, since it is larger than the sum of its proper divisors (1595107).

7975505 is a wasteful number, since it uses less digits than its factorization.

7975505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595106.

The product of its (nonzero) digits is 55125, while the sum is 38.

The square root of 7975505 is about 2824.0936599199. The cubic root of 7975505 is about 199.7956663098.

The spelling of 7975505 in words is "seven million, nine hundred seventy-five thousand, five hundred five".