2175631225 has 12 divisors (see below), whose sum is σ = 2760523216. Its totient is φ = 1700027280.

The previous prime is 2175631153. The next prime is 2175631231. The reversal of 2175631225 is 5221365712.

It is not a de Polignac number, because 2175631225 - 2¹¹ = 2175629177 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1010847 + ... + 1012996.

Almost surely, 2^2175631225 is an apocalyptic number.

2175631225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2175631225 is a deficient number, since it is larger than the sum of its proper divisors (584891991).

2175631225 is a wasteful number, since it uses less digits than its factorization.

2175631225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023896 (or 2023891 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 2175631225 is about 46643.6622168543. The cubic root of 2175631225 is about 1295.7715124633.

Adding to 2175631225 its reverse (5221365712), we get a palindrome (7396996937).

The spelling of 2175631225 in words is "two billion, one hundred seventy-five million, six hundred thirty-one thousand, two hundred twenty-five".