2611655225 has 6 divisors (see below), whose sum is σ = 3238452510. Its totient is φ = 2089324160.

The previous prime is 2611655219. The next prime is 2611655239. The reversal of 2611655225 is 5225561162.

It can be written as a sum of positive squares in 3 ways, for example, as 6165289 + 2605489936 = 2483^2 + 51044^2 .

It is not a de Polignac number, because 2611655225 - 2⁶ = 2611655161 is a prime.

It is a Curzon number.

It is an unprimeable number.

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, 52233080 + ... + 52233129.

It is an arithmetic number, because the mean of its divisors is an integer number (539742085).

Almost surely, 2^2611655225 is an apocalyptic number.

2611655225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2611655225 is a deficient number, since it is larger than the sum of its proper divisors (626797285).

2611655225 is a wasteful number, since it uses less digits than its factorization.

2611655225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104466219 (or 104466214 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

The square root of 2611655225 is about 51104.3562233201. The cubic root of 2611655225 is about 1377.1205143041.

The spelling of 2611655225 in words is "two billion, six hundred eleven million, six hundred fifty-five thousand, two hundred twenty-five".