4045002505 has 8 divisors (see below), whose sum is σ = 5021382600. Its totient is φ = 3124415616.

The previous prime is 4045002503. The next prime is 4045002509. The reversal of 4045002505 is 5052005404.

4045002505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 157854096 + 3887148409 = 12564^2 + 62347^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4045002505 - 2¹ = 4045002503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4045002505.

It is not an unprimeable number, because it can be changed into a prime (4045002503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13948140 + ... + 13948429.

It is an arithmetic number, because the mean of its divisors is an integer number (627672825).

Almost surely, 2^4045002505 is an apocalyptic number.

It is an amenable number.

4045002505 is a deficient number, since it is larger than the sum of its proper divisors (976380095).

4045002505 is a wasteful number, since it uses less digits than its factorization.

4045002505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27896603.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 4045002505 is about 63600.3341579272. The cubic root of 4045002505 is about 1593.3319504733.

Adding to 4045002505 its reverse (5052005404), we get a palindrome (9097007909).

The spelling of 4045002505 in words is "four billion, forty-five million, two thousand, five hundred five".