4455565 has 8 divisors (see below), whose sum is σ = 5361048. Its totient is φ = 3554880.

The previous prime is 4455559. The next prime is 4455569. The reversal of 4455565 is 5655544.

It can be written as a sum of positive squares in 4 ways, for example, as 447561 + 4008004 = 669^2 + 2002^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4455565 - 2⁵ = 4455533 is a prime.

It is a Duffinian number.

4455565 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4455565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4455569) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1339 + ... + 3271.

It is an arithmetic number, because the mean of its divisors is an integer number (670131).

Almost surely, 2^4455565 is an apocalyptic number.

It is an amenable number.

4455565 is a deficient number, since it is larger than the sum of its proper divisors (905483).

4455565 is a wasteful number, since it uses less digits than its factorization.

4455565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399.

The product of its digits is 60000, while the sum is 34.

The square root of 4455565 is about 2110.8209303491. The cubic root of 4455565 is about 164.5511523187.

It can be divided in two parts, 445 and 5565, that multiplied together give a triangular number (2476425 = T₂₂₂₅).

The spelling of 4455565 in words is "four million, four hundred fifty-five thousand, five hundred sixty-five".