255549949043 has 2 divisors, whose sum is σ = 255549949044. Its totient is φ = 255549949042.

The previous prime is 255549949013. The next prime is 255549949051. The reversal of 255549949043 is 340949945552.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255549949043 - 2¹⁰ = 255549948019 is a prime.

It is not a weakly prime, because it can be changed into another prime (255549949013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127774974521 + 127774974522.

It is an arithmetic number, because the mean of its divisors is an integer number (127774974522).

Almost surely, 2^255549949043 is an apocalyptic number.

255549949043 is a deficient number, since it is larger than the sum of its proper divisors (1).

255549949043 is an equidigital number, since it uses as much as digits as its factorization.

255549949043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992000, while the sum is 59.

The spelling of 255549949043 in words is "two hundred fifty-five billion, five hundred forty-nine million, nine hundred forty-nine thousand, forty-three".