255131543 has 2 divisors, whose sum is σ = 255131544. Its totient is φ = 255131542.

The previous prime is 255131537. The next prime is 255131567. The reversal of 255131543 is 345131552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255131543 - 2²⁴ = 238354327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255131533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127565771 + 127565772.

It is an arithmetic number, because the mean of its divisors is an integer number (127565772).

Almost surely, 2^255131543 is an apocalyptic number.

255131543 is a deficient number, since it is larger than the sum of its proper divisors (1).

255131543 is an equidigital number, since it uses as much as digits as its factorization.

255131543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 29.

The square root of 255131543 is about 15972.8376627323. The cubic root of 255131543 is about 634.2415919259.

Subtracting 255131543 from its reverse (345131552), we obtain a palindrome (90000009).

The spelling of 255131543 in words is "two hundred fifty-five million, one hundred thirty-one thousand, five hundred forty-three".