275631225 has 48 divisors (see below), whose sum is σ = 474076800. Its totient is φ = 141137920.

The previous prime is 275631211. The next prime is 275631227. The reversal of 275631225 is 522136572.

It is not a de Polignac number, because 275631225 - 2⁸ = 275630969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (275631227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 767596 + ... + 767954.

It is an arithmetic number, because the mean of its divisors is an integer number (9876600).

Almost surely, 2^275631225 is an apocalyptic number.

275631225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

275631225 is a deficient number, since it is larger than the sum of its proper divisors (198445575).

275631225 is a wasteful number, since it uses less digits than its factorization.

275631225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754 (or 749 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 275631225 is about 16602.1451927153. The cubic root of 275631225 is about 650.7928982726.

Adding to 275631225 its reverse (522136572), we get a palindrome (797767797).

The spelling of 275631225 in words is "two hundred seventy-five million, six hundred thirty-one thousand, two hundred twenty-five".