1055556 has 36 divisors (see below), whose sum is σ = 2702700. Its totient is φ = 347328.

The previous prime is 1055543. The next prime is 1055567. The reversal of 1055556 is 6555501.

1055556 is a `hidden beast` number, since 105 + 5 + 556 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 360000 + 695556 = 600^2 + 834^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1055556² = 2228396938272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3790 + ... + 4058.

It is an arithmetic number, because the mean of its divisors is an integer number (75075).

2^1055556 is an apocalyptic number.

It is an amenable number.

1055556 is an abundant number, since it is smaller than the sum of its proper divisors (1647144).

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

1055556 is a wasteful number, since it uses less digits than its factorization.

1055556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 1055556 is about 1027.4025501234. The cubic root of 1055556 is about 101.8185933618.

Subtracting 1055556 from its reverse (6555501), we obtain a palindrome (5499945).

The spelling of 1055556 in words is "one million, fifty-five thousand, five hundred fifty-six".