3005521345 has 4 divisors (see below), whose sum is σ = 3606625620. Its totient is φ = 2404417072.

The previous prime is 3005521339. The next prime is 3005521381. The reversal of 3005521345 is 5431255003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 719151489 + 2286369856 = 26817^2 + 47816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3005521345 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300552130 + ... + 300552139.

It is an arithmetic number, because the mean of its divisors is an integer number (901656405).

Almost surely, 2^3005521345 is an apocalyptic number.

It is an amenable number.

3005521345 is a deficient number, since it is larger than the sum of its proper divisors (601104275).

3005521345 is an equidigital number, since it uses as much as digits as its factorization.

3005521345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601104274.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 3005521345 is about 54822.6353343215. The cubic root of 3005521345 is about 1443.1338233277.

Adding to 3005521345 its reverse (5431255003), we get a palindrome (8436776348).

The spelling of 3005521345 in words is "three billion, five million, five hundred twenty-one thousand, three hundred forty-five".