2176247225 has 12 divisors (see below), whose sum is σ = 2722431036. Its totient is φ = 1725588480.

The previous prime is 2176247221. The next prime is 2176247233. The reversal of 2176247225 is 5227426712.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1207979536 + 968267689 = 34756^2 + 31117^2 .

It is not a de Polignac number, because 2176247225 - 2² = 2176247221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2176247221) 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 11 ways as a sum of consecutive naturals, for example, 382352 + ... + 388001.

It is an arithmetic number, because the mean of its divisors is an integer number (226869253).

Almost surely, 2^2176247225 is an apocalyptic number.

2176247225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2176247225 is a deficient number, since it is larger than the sum of its proper divisors (546183811).

2176247225 is a wasteful number, since it uses less digits than its factorization.

2176247225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770476 (or 770471 counting only the distinct ones).

The product of its digits is 94080, while the sum is 38.

The square root of 2176247225 is about 46650.2650046064. The cubic root of 2176247225 is about 1295.8937942057.

The spelling of 2176247225 in words is "two billion, one hundred seventy-six million, two hundred forty-seven thousand, two hundred twenty-five".