1255912792556 has 24 divisors (see below), whose sum is σ = 2265831432480. Its totient is φ = 608661447552.

The previous prime is 1255912792553. The next prime is 1255912792579. The reversal of 1255912792556 is 6552972195521.

It is a junction number, because it is equal to n+sod(n) for n = 1255912792495 and 1255912792504.

It is not an unprimeable number, because it can be changed into a prime (1255912792553) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16093961 + ... + 16171808.

It is an arithmetic number, because the mean of its divisors is an integer number (94409643020).

Almost surely, 2^{1255912792556} is an apocalyptic number.

It is an amenable number.

1255912792556 is a deficient number, since it is larger than the sum of its proper divisors (1009918639924).

1255912792556 is a wasteful number, since it uses less digits than its factorization.

1255912792556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32266073 (or 32266071 counting only the distinct ones).

The product of its digits is 17010000, while the sum is 59.

The spelling of 1255912792556 in words is "one trillion, two hundred fifty-five billion, nine hundred twelve million, seven hundred ninety-two thousand, five hundred fifty-six".