4002224525 has 12 divisors (see below), whose sum is σ = 5344509492. Its totient is φ = 2955488640.

The previous prime is 4002224521. The next prime is 4002224539. The reversal of 4002224525 is 5254222004.

It can be written as a sum of positive squares in 6 ways, for example, as 388050601 + 3614173924 = 19699^2 + 60118^2 .

It is not a de Polignac number, because 4002224525 - 2² = 4002224521 is a prime.

It is a super-2 number, since 2×4002224525² = 32035602297022951250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4002224494 and 4002224503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002224521) 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 11 ways as a sum of consecutive naturals, for example, 6156944 + ... + 6157593.

It is an arithmetic number, because the mean of its divisors is an integer number (445375791).

Almost surely, 2^4002224525 is an apocalyptic number.

It is an amenable number.

4002224525 is a deficient number, since it is larger than the sum of its proper divisors (1342284967).

4002224525 is a wasteful number, since it uses less digits than its factorization.

4002224525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12314560 (or 12314555 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 4002224525 is about 63263.1371732386. The cubic root of 4002224525 is about 1587.6952652116.

Adding to 4002224525 its reverse (5254222004), we get a palindrome (9256446529).

The spelling of 4002224525 in words is "four billion, two million, two hundred twenty-four thousand, five hundred twenty-five".