1056553556 has 24 divisors (see below), whose sum is σ = 1886322816. Its totient is φ = 517694240.

The previous prime is 1056553543. The next prime is 1056553579. The reversal of 1056553556 is 6553556501.

It is a super-2 number, since 2×1056553556² = 2232610833392490272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 36290 + ... + 58566.

It is an arithmetic number, because the mean of its divisors is an integer number (78596784).

Almost surely, 2^1056553556 is an apocalyptic number.

It is an amenable number.

1056553556 is a deficient number, since it is larger than the sum of its proper divisors (829769260).

1056553556 is a wasteful number, since it uses less digits than its factorization.

1056553556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22519 (or 22517 counting only the distinct ones).

The product of its (nonzero) digits is 337500, while the sum is 41.

The square root of 1056553556 is about 32504.6697568211. The cubic root of 1056553556 is about 1018.5065790703.

The spelling of 1056553556 in words is "one billion, fifty-six million, five hundred fifty-three thousand, five hundred fifty-six".