255235131 has 20 divisors (see below), whose sum is σ = 386655984. Its totient is φ = 167756400.

The previous prime is 255235111. The next prime is 255235157. The reversal of 255235131 is 131532552.

It is a happy number.

255235131 is a `hidden beast` number, since 2 + 5 + 523 + 5 + 131 = 666.

It is not a de Polignac number, because 255235131 - 2⁶ = 255235067 is a prime.

It is a super-2 number, since 2×255235131² = 130289944193174322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 255235095 and 255235104.

It is not an unprimeable number, because it can be changed into a prime (255235111) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16440 + ... + 27941.

Almost surely, 2^255235131 is an apocalyptic number.

255235131 is a deficient number, since it is larger than the sum of its proper divisors (131420853).

255235131 is an equidigital number, since it uses as much as digits as its factorization.

255235131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44464 (or 44455 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 255235131 is about 15976.0799634954. The cubic root of 255235131 is about 634.3274181465.

Adding to 255235131 its reverse (131532552), we get a palindrome (386767683).

The spelling of 255235131 in words is "two hundred fifty-five million, two hundred thirty-five thousand, one hundred thirty-one".