255463931 has 2 divisors, whose sum is σ = 255463932. Its totient is φ = 255463930.

The previous prime is 255463889. The next prime is 255463939. The reversal of 255463931 is 139364552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255463931 - 2¹⁴ = 255447547 is a prime.

It is a super-2 number, since 2×255463931² = 130523640083945522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255463939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127731965 + 127731966.

It is an arithmetic number, because the mean of its divisors is an integer number (127731966).

Almost surely, 2^255463931 is an apocalyptic number.

255463931 is a deficient number, since it is larger than the sum of its proper divisors (1).

255463931 is an equidigital number, since it uses as much as digits as its factorization.

255463931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 38.

The square root of 255463931 is about 15983.2390647203. The cubic root of 255463931 is about 634.5169045583.

The spelling of 255463931 in words is "two hundred fifty-five million, four hundred sixty-three thousand, nine hundred thirty-one".