1255744985305 has 16 divisors (see below), whose sum is σ = 1517362070400. Its totient is φ = 997640490240.

The previous prime is 1255744985267. The next prime is 1255744985347. The reversal of 1255744985305 is 5035894475521.

It is not a de Polignac number, because 1255744985305 - 2²⁹ = 1255208114393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1255744985305.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1018815 + ... + 1884004.

It is an arithmetic number, because the mean of its divisors is an integer number (94835129400).

Almost surely, 2^{1255744985305} is an apocalyptic number.

It is an amenable number.

1255744985305 is a deficient number, since it is larger than the sum of its proper divisors (261617085095).

1255744985305 is a wasteful number, since it uses less digits than its factorization.

1255744985305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903424.

The product of its (nonzero) digits is 30240000, while the sum is 58.

The spelling of 1255744985305 in words is "one trillion, two hundred fifty-five billion, seven hundred forty-four million, nine hundred eighty-five thousand, three hundred five".