1255388926803 has 32 divisors (see below), whose sum is σ = 1978396814592. Its totient is φ = 699433190400.

The previous prime is 1255388926793. The next prime is 1255388926823. The reversal of 1255388926803 is 3086298835521.

It is a happy number.

It is not a de Polignac number, because 1255388926803 - 2¹⁰ = 1255388925779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255388926823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25996458 + ... + 26044703.

It is an arithmetic number, because the mean of its divisors is an integer number (61824900456).

Almost surely, 2^{1255388926803} is an apocalyptic number.

1255388926803 is a deficient number, since it is larger than the sum of its proper divisors (723007887789).

1255388926803 is a wasteful number, since it uses less digits than its factorization.

1255388926803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52041235.

The product of its (nonzero) digits is 24883200, while the sum is 60.

The spelling of 1255388926803 in words is "one trillion, two hundred fifty-five billion, three hundred eighty-eight million, nine hundred twenty-six thousand, eight hundred three".