4252113225 has 30 divisors (see below), whose sum is σ = 7876387310. Its totient is φ = 2267792640.

The previous prime is 4252113221. The next prime is 4252113263. The reversal of 4252113225 is 5223112524.

4252113225 is a `hidden beast` number, since 4 + 2 + 521 + 132 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 37896336 + 4214216889 = 6156^2 + 64917^2 .

It is not a de Polignac number, because 4252113225 - 2² = 4252113221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4252113221) 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 29 ways as a sum of consecutive naturals, for example, 1047880 + ... + 1051929.

Almost surely, 2^4252113225 is an apocalyptic number.

4252113225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4252113225 is a deficient number, since it is larger than the sum of its proper divisors (3624274085).

4252113225 is a wasteful number, since it uses less digits than its factorization.

4252113225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099831 (or 2099817 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 4252113225 is about 65208.2297336770. The cubic root of 4252113225 is about 1620.0743278654.

Adding to 4252113225 its reverse (5223112524), we get a palindrome (9475225749).

The spelling of 4252113225 in words is "four billion, two hundred fifty-two million, one hundred thirteen thousand, two hundred twenty-five".