235111256225 has 24 divisors (see below), whose sum is σ = 294033581688. Its totient is φ = 186484147200.

The previous prime is 235111256221. The next prime is 235111256227. The reversal of 235111256225 is 522652111532.

It is a happy number.

235111256225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 123961030561 + 111150225664 = 352081^2 + 333392^2 .

It is not a de Polignac number, because 235111256225 - 2² = 235111256221 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 (235111256221) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1744457 + ... + 1874393.

It is an arithmetic number, because the mean of its divisors is an integer number (12251399237).

Almost surely, 2^235111256225 is an apocalyptic number.

235111256225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

235111256225 is a deficient number, since it is larger than the sum of its proper divisors (58922325463).

235111256225 is a wasteful number, since it uses less digits than its factorization.

235111256225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130565 (or 130560 counting only the distinct ones).

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

Adding to 235111256225 its reverse (522652111532), we get a palindrome (757763367757).

The spelling of 235111256225 in words is "two hundred thirty-five billion, one hundred eleven million, two hundred fifty-six thousand, two hundred twenty-five".