2665262025 has 18 divisors (see below), whose sum is σ = 4773780830. Its totient is φ = 1421472960.

The previous prime is 2665262009. The next prime is 2665262029. The reversal of 2665262025 is 5202625662.

2665262025 is a `hidden beast` number, since 2 + 6 + 6 + 5 + 2 + 620 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 113294736 + 2551967289 = 10644^2 + 50517^2 .

It is not a de Polignac number, because 2665262025 - 2⁴ = 2665262009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2665262029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5922580 + ... + 5923029.

Almost surely, 2^2665262025 is an apocalyptic number.

2665262025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2665262025 is a deficient number, since it is larger than the sum of its proper divisors (2108518805).

2665262025 is a wasteful number, since it uses less digits than its factorization.

2665262025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11845625 (or 11845617 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 2665262025 is about 51626.1757735357. The cubic root of 2665262025 is about 1386.4790249043.

Adding to 2665262025 its reverse (5202625662), we get a palindrome (7867887687).

The spelling of 2665262025 in words is "two billion, six hundred sixty-five million, two hundred sixty-two thousand, twenty-five".