3531202445225 has 324 divisors, whose sum is σ = 5983111073124. Its totient is φ = 2058653076480.

The previous prime is 3531202445167. The next prime is 3531202445227. The reversal of 3531202445225 is 5225442021353.

3531202445225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 18 ways, for example, as 2534072383129 + 997130062096 = 1591877^2 + 998564^2 .

It is not a de Polignac number, because 3531202445225 - 2⁸ = 3531202444969 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3531202445227) by changing a digit.

It is a polite number, since it can be written in 323 ways as a sum of consecutive naturals, for example, 2765232287 + ... + 2765233563.

It is an arithmetic number, because the mean of its divisors is an integer number (18466392201).

Almost surely, 2^{3531202445225} is an apocalyptic number.

3531202445225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3531202445225 is a deficient number, since it is larger than the sum of its proper divisors (2451908627899).

3531202445225 is a wasteful number, since it uses less digits than its factorization.

3531202445225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402 (or 1358 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 3531202445225 its reverse (5225442021353), we get a palindrome (8756644466578).

The spelling of 3531202445225 in words is "three trillion, five hundred thirty-one billion, two hundred two million, four hundred forty-five thousand, two hundred twenty-five".