255590540629 has 2 divisors, whose sum is σ = 255590540630. Its totient is φ = 255590540628.

The previous prime is 255590540627. The next prime is 255590540671. The reversal of 255590540629 is 926045095552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254474847025 + 1115693604 = 504455^2 + 33402^2 .

It is a cyclic number.

It is not a de Polignac number, because 255590540629 - 2¹ = 255590540627 is a prime.

Together with 255590540627, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255590540627) 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, 127795270314 + 127795270315.

It is an arithmetic number, because the mean of its divisors is an integer number (127795270315).

Almost surely, 2^255590540629 is an apocalyptic number.

It is an amenable number.

255590540629 is a deficient number, since it is larger than the sum of its proper divisors (1).

255590540629 is an equidigital number, since it uses as much as digits as its factorization.

255590540629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860000, while the sum is 52.

The spelling of 255590540629 in words is "two hundred fifty-five billion, five hundred ninety million, five hundred forty thousand, six hundred twenty-nine".