2705868225 has 18 divisors (see below), whose sum is σ = 4846511046. Its totient is φ = 1443129600.

The previous prime is 2705868203. The next prime is 2705868239. The reversal of 2705868225 is 5228685072.

It can be written as a sum of positive squares in 3 ways, for example, as 312016896 + 2393851329 = 17664^2 + 48927^2 .

It is not a de Polignac number, because 2705868225 - 2¹² = 2705864129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6012816 + ... + 6013265.

Almost surely, 2^2705868225 is an apocalyptic number.

2705868225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2705868225 is a deficient number, since it is larger than the sum of its proper divisors (2140642821).

2705868225 is a wasteful number, since it uses less digits than its factorization.

2705868225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12026097 (or 12026089 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 2705868225 is about 52017.9606001619. The cubic root of 2705868225 is about 1393.4847307628.

The spelling of 2705868225 in words is "two billion, seven hundred five million, eight hundred sixty-eight thousand, two hundred twenty-five".