255206543 has 2 divisors, whose sum is σ = 255206544. Its totient is φ = 255206542.

The previous prime is 255206527. The next prime is 255206557. The reversal of 255206543 is 345602552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255206543 - 2⁴ = 255206527 is a prime.

It is a super-3 number, since 3×255206543³ (a number of 26 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255206503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127603271 + 127603272.

It is an arithmetic number, because the mean of its divisors is an integer number (127603272).

Almost surely, 2^255206543 is an apocalyptic number.

255206543 is a deficient number, since it is larger than the sum of its proper divisors (1).

255206543 is an equidigital number, since it uses as much as digits as its factorization.

255206543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 255206543 is about 15975.1852258432. The cubic root of 255206543 is about 634.3037343257.

The spelling of 255206543 in words is "two hundred fifty-five million, two hundred six thousand, five hundred forty-three".