3531203244225 has 36 divisors (see below), whose sum is σ = 6324902703756. Its totient is φ = 1883271075840.

The previous prime is 3531203244143. The next prime is 3531203244241. The reversal of 3531203244225 is 5224423021353.

3531203244225 is a `hidden beast` number, since 3 + 5 + 3 + 1 + 203 + 2 + 442 + 2 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 1077992133696 + 2453211110529 = 1038264^2 + 1566273^2 .

It is not a de Polignac number, because 3531203244225 - 2⁷ = 3531203244097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3531203244225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14136009 + ... + 14383641.

It is an arithmetic number, because the mean of its divisors is an integer number (175691741771).

Almost surely, 2^{3531203244225} is an apocalyptic number.

It is an amenable number.

3531203244225 is a deficient number, since it is larger than the sum of its proper divisors (2793699459531).

3531203244225 is a wasteful number, since it uses less digits than its factorization.

3531203244225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311026 (or 311018 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 3531203244225 its reverse (5224423021353), we get a palindrome (8755626265578).

The spelling of 3531203244225 in words is "three trillion, five hundred thirty-one billion, two hundred three million, two hundred forty-four thousand, two hundred twenty-five".