255421230343267 has 2 divisors, whose sum is σ = 255421230343268. Its totient is φ = 255421230343266.

The previous prime is 255421230343163. The next prime is 255421230343271. The reversal of 255421230343267 is 762343032124552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255421230343267 - 2³⁹ = 254871474529379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255421230343267.

It is not a weakly prime, because it can be changed into another prime (255421230343277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127710615171633 + 127710615171634.

It is an arithmetic number, because the mean of its divisors is an integer number (127710615171634).

Almost surely, 2^{255421230343267} is an apocalyptic number.

255421230343267 is a deficient number, since it is larger than the sum of its proper divisors (1).

255421230343267 is an equidigital number, since it uses as much as digits as its factorization.

255421230343267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7257600, while the sum is 49.

The spelling of 255421230343267 in words is "two hundred fifty-five trillion, four hundred twenty-one billion, two hundred thirty million, three hundred forty-three thousand, two hundred sixty-seven".