3207320225 has 6 divisors (see below), whose sum is σ = 3977077110. Its totient is φ = 2565856160.

The previous prime is 3207320219. The next prime is 3207320227. The reversal of 3207320225 is 5220237023.

It can be written as a sum of positive squares in 3 ways, for example, as 176597521 + 3030722704 = 13289^2 + 55052^2 .

It is not a de Polignac number, because 3207320225 - 2⁴ = 3207320209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3207320194 and 3207320203.

It is not an unprimeable number, because it can be changed into a prime (3207320227) 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, 64146380 + ... + 64146429.

It is an arithmetic number, because the mean of its divisors is an integer number (662846185).

Almost surely, 2^3207320225 is an apocalyptic number.

It is an amenable number.

3207320225 is a deficient number, since it is larger than the sum of its proper divisors (769756885).

3207320225 is a wasteful number, since it uses less digits than its factorization.

3207320225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128292819 (or 128292814 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 3207320225 is about 56633.2077936611. The cubic root of 3207320225 is about 1474.7354078680.

Adding to 3207320225 its reverse (5220237023), we get a palindrome (8427557248).

The spelling of 3207320225 in words is "three billion, two hundred seven million, three hundred twenty thousand, two hundred twenty-five".