4225945649 has 8 divisors (see below), whose sum is σ = 4239925800. Its totient is φ = 4211980416.

The previous prime is 4225945643. The next prime is 4225945673. The reversal of 4225945649 is 9465495224.

It can be written as a sum of positive squares in 4 ways, for example, as 3010168225 + 1215777424 = 54865^2 + 34868^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4225945649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4225945597 and 4225945606.

It is not an unprimeable number, because it can be changed into a prime (4225945643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 906677 + ... + 911325.

It is an arithmetic number, because the mean of its divisors is an integer number (529990725).

Almost surely, 2^4225945649 is an apocalyptic number.

It is an amenable number.

4225945649 is a deficient number, since it is larger than the sum of its proper divisors (13980151).

4225945649 is a wasteful number, since it uses less digits than its factorization.

4225945649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7459.

The product of its digits is 3110400, while the sum is 50.

The square root of 4225945649 is about 65007.2738160892. The cubic root of 4225945649 is about 1616.7441656876.

The spelling of 4225945649 in words is "four billion, two hundred twenty-five million, nine hundred forty-five thousand, six hundred forty-nine".