3782865025 has 9 divisors (see below), whose sum is σ = 4691133993. Its totient is φ = 3026046000.

The previous prime is 3782865013. The next prime is 3782865049. The reversal of 3782865025 is 5205682873.

It is a happy number.

The square root of 3782865025 is 61505.

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 313183809 + 3469681216 = 17697^2 + 58904^2 .

It is not a de Polignac number, because 3782865025 - 2¹¹ = 3782862977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 301375 + ... + 313675.

Almost surely, 2^3782865025 is an apocalyptic number.

3782865025 is the 61505-th square number.

3782865025 is the 30753-rd centered octagonal number.

It is an amenable number.

3782865025 is a deficient number, since it is larger than the sum of its proper divisors (908268968).

3782865025 is an frugal number, since it uses more digits than its factorization.

3782865025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24612 (or 12306 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 46.

The cubic root of 3782865025 is about 1558.1416926837.

The spelling of 3782865025 in words is "three billion, seven hundred eighty-two million, eight hundred sixty-five thousand, twenty-five".