1055551005556 has 48 divisors (see below), whose sum is σ = 1863005760000. Its totient is φ = 523288200960.

The previous prime is 1055551005521. The next prime is 1055551005559. The reversal of 1055551005556 is 6555001555501.

It is a super-2 number, since 2×1055551005556² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055551005559) 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 in 15 ways as a sum of consecutive naturals, for example, 227046720 + ... + 227051368.

It is an arithmetic number, because the mean of its divisors is an integer number (38812620000).

Almost surely, 2^{1055551005556} is an apocalyptic number.

It is an amenable number.

1055551005556 is a deficient number, since it is larger than the sum of its proper divisors (807454754444).

1055551005556 is a wasteful number, since it uses less digits than its factorization.

1055551005556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5872 (or 5870 counting only the distinct ones).

The product of its (nonzero) digits is 468750, while the sum is 43.

Subtracting 1055551005556 from its reverse (6555001555501), we obtain a palindrome (5499450549945).

It can be divided in two parts, 105555 and 1005556, that added together give a palindrome (1111111).

The spelling of 1055551005556 in words is "one trillion, fifty-five billion, five hundred fifty-one million, five thousand, five hundred fifty-six".