235631225 has 12 divisors (see below), whose sum is σ = 296187516. Its totient is φ = 185921280.

The previous prime is 235631219. The next prime is 235631233. The reversal of 235631225 is 522136532.

It can be written as a sum of positive squares in 6 ways, for example, as 25120144 + 210511081 = 5012^2 + 14509^2 .

It is not a de Polignac number, because 235631225 - 2¹⁶ = 235565689 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62732 + ... + 66381.

It is an arithmetic number, because the mean of its divisors is an integer number (24682293).

Almost surely, 2^235631225 is an apocalyptic number.

235631225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

235631225 is a deficient number, since it is larger than the sum of its proper divisors (60556291).

235631225 is a wasteful number, since it uses less digits than its factorization.

235631225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129196 (or 129191 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The square root of 235631225 is about 15350.2841993235. The cubic root of 235631225 is about 617.6526091583.

Adding to 235631225 its reverse (522136532), we get a palindrome (757767757).

The spelling of 235631225 in words is "two hundred thirty-five million, six hundred thirty-one thousand, two hundred twenty-five".