1051055556 has 48 divisors (see below), whose sum is σ = 2478981120. Its totient is φ = 346580640.

The previous prime is 1051055539. The next prime is 1051055563. The reversal of 1051055556 is 6555501501.

It is a super-2 number, since 2×1051055556² = 2209435563596938272, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 668251 + ... + 669821.

It is an arithmetic number, because the mean of its divisors is an integer number (51645440).

Almost surely, 2^1051055556 is an apocalyptic number.

It is an amenable number.

1051055556 is an abundant number, since it is smaller than the sum of its proper divisors (1427925564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1051055556 is a wasteful number, since it uses less digits than its factorization.

1051055556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144 (or 2142 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 33.

The square root of 1051055556 is about 32419.9869833410. The cubic root of 1051055556 is about 1016.7368342625.

It can be divided in two parts, 10510 and 55556, that added together give a palindrome (66066).

The spelling of 1051055556 in words is "one billion, fifty-one million, fifty-five thousand, five hundred fifty-six".