255782073973 has 2 divisors, whose sum is σ = 255782073974. Its totient is φ = 255782073972.

The previous prime is 255782073959. The next prime is 255782073977. The reversal of 255782073973 is 379370287552.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253067351364 + 2714722609 = 503058^2 + 52103^2 .

It is a cyclic number.

It is not a de Polignac number, because 255782073973 - 2⁹ = 255782073461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255782073977) 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, 127891036986 + 127891036987.

It is an arithmetic number, because the mean of its divisors is an integer number (127891036987).

Almost surely, 2^255782073973 is an apocalyptic number.

It is an amenable number.

255782073973 is a deficient number, since it is larger than the sum of its proper divisors (1).

255782073973 is an equidigital number, since it uses as much as digits as its factorization.

255782073973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22226400, while the sum is 58.

The spelling of 255782073973 in words is "two hundred fifty-five billion, seven hundred eighty-two million, seventy-three thousand, nine hundred seventy-three".