4125505 has 4 divisors (see below), whose sum is σ = 4950612. Its totient is φ = 3300400.

The previous prime is 4125497. The next prime is 4125521. The reversal of 4125505 is 5055214.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5055214 = 2 ⋅2527607.

It can be written as a sum of positive squares in 2 ways, for example, as 2782224 + 1343281 = 1668^2 + 1159^2 .

It is not a de Polignac number, because 4125505 - 2³ = 4125497 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 412546 + ... + 412555.

It is an arithmetic number, because the mean of its divisors is an integer number (1237653).

Almost surely, 2^4125505 is an apocalyptic number.

It is an amenable number.

4125505 is a deficient number, since it is larger than the sum of its proper divisors (825107).

4125505 is an equidigital number, since it uses as much as digits as its factorization.

4125505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825106.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 4125505 is about 2031.1339197601. The cubic root of 4125505 is about 160.3832608987.

The spelling of 4125505 in words is "four million, one hundred twenty-five thousand, five hundred five".