4224440025 has 72 divisors (see below), whose sum is σ = 8221229016. Its totient is φ = 2061158400.

The previous prime is 4224440021. The next prime is 4224440047. The reversal of 4224440025 is 5200444224.

It can be written as a sum of positive squares in 12 ways, for example, as 2722334976 + 1502105049 = 52176^2 + 38757^2 .

It is not a de Polignac number, because 4224440025 - 2² = 4224440021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4224440021) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 324135 + ... + 336915.

Almost surely, 2^4224440025 is an apocalyptic number.

4224440025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4224440025 is a deficient number, since it is larger than the sum of its proper divisors (3996788991).

4224440025 is a wasteful number, since it uses less digits than its factorization.

4224440025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12923 (or 12915 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 4224440025 is about 64995.6923572632. The cubic root of 4224440025 is about 1616.5521378226.

Adding to 4224440025 its reverse (5200444224), we get a palindrome (9424884249).

The spelling of 4224440025 in words is "four billion, two hundred twenty-four million, four hundred forty thousand, twenty-five".