255549949051 has 2 divisors, whose sum is σ = 255549949052. Its totient is φ = 255549949050.

The previous prime is 255549949043. The next prime is 255549949079. The reversal of 255549949051 is 150949945552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255549949051 - 2³ = 255549949043 is a prime.

It is not a weakly prime, because it can be changed into another prime (255549949451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127774974525 + 127774974526.

It is an arithmetic number, because the mean of its divisors is an integer number (127774974526).

Almost surely, 2^255549949051 is an apocalyptic number.

255549949051 is a deficient number, since it is larger than the sum of its proper divisors (1).

255549949051 is an equidigital number, since it uses as much as digits as its factorization.

255549949051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580000, while the sum is 58.

The spelling of 255549949051 in words is "two hundred fifty-five billion, five hundred forty-nine million, nine hundred forty-nine thousand, fifty-one".