3643933225 has 9 divisors (see below), whose sum is σ = 4518851493. Its totient is φ = 2914905120.

The previous prime is 3643933211. The next prime is 3643933229. The reversal of 3643933225 is 5223393463.

The square root of 3643933225 is 60365.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1822692249 + 1821240976 = 42693^2 + 42676^2 .

It is not a de Polignac number, because 3643933225 - 2⁵ = 3643933193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3643933229) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 295789 + ... + 307861.

Almost surely, 2^3643933225 is an apocalyptic number.

3643933225 is the 60365-th square number.

3643933225 is the 30183-rd centered octagonal number.

It is an amenable number.

3643933225 is a deficient number, since it is larger than the sum of its proper divisors (874918268).

3643933225 is an frugal number, since it uses more digits than its factorization.

3643933225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24156 (or 12078 counting only the distinct ones).

The product of its digits is 349920, while the sum is 40.

The cubic root of 3643933225 is about 1538.8282007681.

The spelling of 3643933225 in words is "three billion, six hundred forty-three million, nine hundred thirty-three thousand, two hundred twenty-five".