3643415225 has 12 divisors (see below), whose sum is σ = 4543079760. Its totient is φ = 2898445200.

The previous prime is 3643415221. The next prime is 3643415249. The reversal of 3643415225 is 5225143463.

3643415225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3643415225 - 2² = 3643415221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3643415221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 402611 + ... + 411560.

It is an arithmetic number, because the mean of its divisors is an integer number (378589980).

Almost surely, 2^3643415225 is an apocalyptic number.

It is an amenable number.

3643415225 is a deficient number, since it is larger than the sum of its proper divisors (899664535).

3643415225 is a wasteful number, since it uses less digits than its factorization.

3643415225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814360 (or 814355 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

The square root of 3643415225 is about 60360.7092817836. The cubic root of 3643415225 is about 1538.7552804068.

Adding to 3643415225 its reverse (5225143463), we get a palindrome (8868558688).

The spelling of 3643415225 in words is "three billion, six hundred forty-three million, four hundred fifteen thousand, two hundred twenty-five".