255440443523 has 2 divisors, whose sum is σ = 255440443524. Its totient is φ = 255440443522.

The previous prime is 255440443519. The next prime is 255440443547. The reversal of 255440443523 is 325344044552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255440443523 - 2² = 255440443519 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (255440343523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127720221761 + 127720221762.

It is an arithmetic number, because the mean of its divisors is an integer number (127720221762).

Almost surely, 2^255440443523 is an apocalyptic number.

255440443523 is a deficient number, since it is larger than the sum of its proper divisors (1).

255440443523 is an equidigital number, since it uses as much as digits as its factorization.

255440443523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152000, while the sum is 41.

The spelling of 255440443523 in words is "two hundred fifty-five billion, four hundred forty million, four hundred forty-three thousand, five hundred twenty-three".