1052165225 has 6 divisors (see below), whose sum is σ = 1304684910. Its totient is φ = 841732160.

The previous prime is 1052165221. The next prime is 1052165243. The reversal of 1052165225 is 5225612501.

It can be written as a sum of positive squares in 3 ways, for example, as 90421081 + 961744144 = 9509^2 + 31012^2 .

It is not a de Polignac number, because 1052165225 - 2² = 1052165221 is a prime.

It is a super-2 number, since 2×1052165225² = 2214103321398601250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1052165221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21043280 + ... + 21043329.

It is an arithmetic number, because the mean of its divisors is an integer number (217447485).

Almost surely, 2^1052165225 is an apocalyptic number.

It is an amenable number.

1052165225 is a deficient number, since it is larger than the sum of its proper divisors (252519685).

1052165225 is an equidigital number, since it uses as much as digits as its factorization.

1052165225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42086619 (or 42086614 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 1052165225 is about 32437.0964329423. The cubic root of 1052165225 is about 1017.0945205647.

Adding to 1052165225 its reverse (5225612501), we get a palindrome (6277777726).

The spelling of 1052165225 in words is "one billion, fifty-two million, one hundred sixty-five thousand, two hundred twenty-five".