4221304025 has 6 divisors (see below), whose sum is σ = 5234417022. Its totient is φ = 3377043200.

The previous prime is 4221304019. The next prime is 4221304027. The reversal of 4221304025 is 5204031224.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 57441241 + 4163862784 = 7579^2 + 64528^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4221304025 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4221304027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84426056 + ... + 84426105.

It is an arithmetic number, because the mean of its divisors is an integer number (872402837).

Almost surely, 2^4221304025 is an apocalyptic number.

It is an amenable number.

4221304025 is a deficient number, since it is larger than the sum of its proper divisors (1013112997).

4221304025 is a wasteful number, since it uses less digits than its factorization.

4221304025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168852171 (or 168852166 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 4221304025 is about 64971.5632026812. The cubic root of 4221304025 is about 1616.1520246371.

Adding to 4221304025 its reverse (5204031224), we get a palindrome (9425335249).

The spelling of 4221304025 in words is "four billion, two hundred twenty-one million, three hundred four thousand, twenty-five".