3258631508225 has 6 divisors (see below), whose sum is σ = 4040703070230. Its totient is φ = 2606905206560.

The previous prime is 3258631508221. The next prime is 3258631508269. The reversal of 3258631508225 is 5228051368523.

It is a Cunningham number, because it is equal to 1805168²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1 + 3258631508224 = 1^2 + 1805168^2 .

It is not a de Polignac number, because 3258631508225 - 2² = 3258631508221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3258631508221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65172630140 + ... + 65172630189.

It is an arithmetic number, because the mean of its divisors is an integer number (673450511705).

Almost surely, 2^{3258631508225} is an apocalyptic number.

It is an amenable number.

3258631508225 is a deficient number, since it is larger than the sum of its proper divisors (782071562005).

3258631508225 is a wasteful number, since it uses less digits than its factorization.

3258631508225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130345260339 (or 130345260334 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 50.

The spelling of 3258631508225 in words is "three trillion, two hundred fifty-eight billion, six hundred thirty-one million, five hundred eight thousand, two hundred twenty-five".