255820357147 has 2 divisors, whose sum is σ = 255820357148. Its totient is φ = 255820357146.

The previous prime is 255820357127. The next prime is 255820357157. The reversal of 255820357147 is 741753028552.

255820357147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255820357147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255820357147.

It is not a weakly prime, because it can be changed into another prime (255820357127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127910178573 + 127910178574.

It is an arithmetic number, because the mean of its divisors is an integer number (127910178574).

Almost surely, 2^255820357147 is an apocalyptic number.

255820357147 is a deficient number, since it is larger than the sum of its proper divisors (1).

255820357147 is an equidigital number, since it uses as much as digits as its factorization.

255820357147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352000, while the sum is 49.

The spelling of 255820357147 in words is "two hundred fifty-five billion, eight hundred twenty million, three hundred fifty-seven thousand, one hundred forty-seven".