1051065556 has 6 divisors (see below), whose sum is σ = 1839364730. Its totient is φ = 525532776.

The previous prime is 1051065553. The next prime is 1051065577. The reversal of 1051065556 is 6555601501.

It can be written as a sum of positive squares in only one way, i.e., 956664900 + 94400656 = 30930^2 + 9716^2 .

It is a super-2 number, since 2×1051065556² = 2209477606019178272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051065553) 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 as a sum of consecutive naturals, namely, 131383191 + ... + 131383198.

Almost surely, 2^1051065556 is an apocalyptic number.

It is an amenable number.

1051065556 is a deficient number, since it is larger than the sum of its proper divisors (788299174).

1051065556 is a wasteful number, since it uses less digits than its factorization.

1051065556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262766393 (or 262766391 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 1051065556 is about 32420.1412088226. The cubic root of 1051065556 is about 1016.7400587467.

The spelling of 1051065556 in words is "one billion, fifty-one million, sixty-five thousand, five hundred fifty-six".