7105825 has 6 divisors (see below), whose sum is σ = 8811254. Its totient is φ = 5684640.

The previous prime is 7105807. The next prime is 7105831. The reversal of 7105825 is 5285017.

It can be written as a sum of positive squares in 3 ways, for example, as 2405601 + 4700224 = 1551^2 + 2168^2 .

It is not a de Polignac number, because 7105825 - 2⁷ = 7105697 is a prime.

It is a Duffinian number.

7105825 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7105793 and 7105802.

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 5 ways as a sum of consecutive naturals, for example, 142092 + ... + 142141.

Almost surely, 2^7105825 is an apocalyptic number.

It is an amenable number.

7105825 is a deficient number, since it is larger than the sum of its proper divisors (1705429).

7105825 is a wasteful number, since it uses less digits than its factorization.

7105825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284243 (or 284238 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 7105825 is about 2665.6753365705. The cubic root of 7105825 is about 192.2522815742.

The spelling of 7105825 in words is "seven million, one hundred five thousand, eight hundred twenty-five".