3749725225 has 27 divisors (see below), whose sum is σ = 4793202981. Its totient is φ = 2909887200.

The previous prime is 3749725223. The next prime is 3749725229. The reversal of 3749725225 is 5225279473.

The square root of 3749725225 is 61235.

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 355963689 + 3393761536 = 18867^2 + 58256^2 .

It is not a de Polignac number, because 3749725225 - 2¹ = 3749725223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3749725223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 11328310 + ... + 11328640.

Almost surely, 2^3749725225 is an apocalyptic number.

3749725225 is the 61235-th square number.

3749725225 is the 30618-th centered octagonal number.

It is an amenable number.

3749725225 is a deficient number, since it is larger than the sum of its proper divisors (1043477756).

3749725225 is an frugal number, since it uses more digits than its factorization.

3749725225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746 (or 373 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 46.

The cubic root of 3749725225 is about 1553.5783058362.

The spelling of 3749725225 in words is "three billion, seven hundred forty-nine million, seven hundred twenty-five thousand, two hundred twenty-five".