255305131 has 2 divisors, whose sum is σ = 255305132. Its totient is φ = 255305130.

The previous prime is 255305123. The next prime is 255305153. The reversal of 255305131 is 131503552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255305131 - 2³ = 255305123 is a prime.

It is a super-2 number, since 2×255305131² = 130361419829854322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 255305096 and 255305105.

It is not a weakly prime, because it can be changed into another prime (255305111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127652565 + 127652566.

It is an arithmetic number, because the mean of its divisors is an integer number (127652566).

Almost surely, 2^255305131 is an apocalyptic number.

255305131 is a deficient number, since it is larger than the sum of its proper divisors (1).

255305131 is an equidigital number, since it uses as much as digits as its factorization.

255305131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 255305131 is about 15978.2705885211. The cubic root of 255305131 is about 634.3854024065.

Adding to 255305131 its reverse (131503552), we get a palindrome (386808683).

The spelling of 255305131 in words is "two hundred fifty-five million, three hundred five thousand, one hundred thirty-one".