3165750225 has 135 divisors (see below), whose sum is σ = 6444882795. Its totient is φ = 1485396000.

The previous prime is 3165750223. The next prime is 3165750253. The reversal of 3165750225 is 5220575613.

The square root of 3165750225 is 56265.

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

3165750225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1139670081 + 2026080144 = 33759^2 + 45012^2 .

It is not a de Polignac number, because 3165750225 - 2¹ = 3165750223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3165750225.

It is not an unprimeable number, because it can be changed into a prime (3165750223) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 102120960 + ... + 102120990.

Almost surely, 2^3165750225 is an apocalyptic number.

3165750225 is the 56265-th square number.

3165750225 is the 28133-rd centered octagonal number.

It is an amenable number.

3165750225 is an abundant number, since it is smaller than the sum of its proper divisors (3279132570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3165750225 is an equidigital number, since it uses as much as digits as its factorization.

3165750225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The cubic root of 3165750225 is about 1468.3363450162.

Multiplying 3165750225 by its sum of digits (36), we get a square (113967008100 = 337590²).

The spelling of 3165750225 in words is "three billion, one hundred sixty-five million, seven hundred fifty thousand, two hundred twenty-five".