2445489569 has 2 divisors, whose sum is σ = 2445489570. Its totient is φ = 2445489568.

The previous prime is 2445489523. The next prime is 2445489577. The reversal of 2445489569 is 9659845442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2095350625 + 350138944 = 45775^2 + 18712^2 .

It is a cyclic number.

It is not a de Polignac number, because 2445489569 - 2⁸ = 2445489313 is a prime.

It is a super-2 number, since 2×2445489569² = 11960838464175611522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2445489509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1222744784 + 1222744785.

It is an arithmetic number, because the mean of its divisors is an integer number (1222744785).

Almost surely, 2^2445489569 is an apocalyptic number.

It is an amenable number.

2445489569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2445489569 is an equidigital number, since it uses as much as digits as its factorization.

2445489569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12441600, while the sum is 56.

The square root of 2445489569 is about 49451.8914602869. The cubic root of 2445489569 is about 1347.2719613008.

The spelling of 2445489569 in words is "two billion, four hundred forty-five million, four hundred eighty-nine thousand, five hundred sixty-nine".