3165601225 has 24 divisors (see below), whose sum is σ = 4006451160. Its totient is φ = 2480325120.

The previous prime is 3165601213. The next prime is 3165601237. The reversal of 3165601225 is 5221065613.

It is an interprime number because it is at equal distance from previous prime (3165601213) and next prime (3165601237).

It can be written as a sum of positive squares in 12 ways, for example, as 282340809 + 2883260416 = 16803^2 + 53696^2 .

It is not a de Polignac number, because 3165601225 - 2¹³ = 3165593033 is a prime.

It is a super-2 number, since 2×3165601225² = 20042062231443001250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 895261 + ... + 898789.

It is an arithmetic number, because the mean of its divisors is an integer number (166935465).

Almost surely, 2^3165601225 is an apocalyptic number.

It is an amenable number.

3165601225 is a deficient number, since it is larger than the sum of its proper divisors (840849935).

3165601225 is a wasteful number, since it uses less digits than its factorization.

3165601225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4269 (or 4264 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 3165601225 is about 56263.6758930662. The cubic root of 3165601225 is about 1468.3133082916.

Adding to 3165601225 its reverse (5221065613), we get a palindrome (8386666838).

The spelling of 3165601225 in words is "three billion, one hundred sixty-five million, six hundred one thousand, two hundred twenty-five".