1055611 has 2 divisors, whose sum is σ = 1055612. Its totient is φ = 1055610.

The previous prime is 1055609. The next prime is 1055671. The reversal of 1055611 is 1165501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1055611 - 2¹ = 1055609 is a prime.

It is a super-2 number, since 2×1055611² = 2228629166642, which contains 22 as substring.

Together with 1055609, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1055671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527805 + 527806.

It is an arithmetic number, because the mean of its divisors is an integer number (527806).

2^1055611 is an apocalyptic number.

1055611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055611 is an equidigital number, since it uses as much as digits as its factorization.

1055611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 1055611 is about 1027.4293163036. The cubic root of 1055611 is about 101.8203617586.

It can be divided in two parts, 105 and 5611, that multiplied together give a triangular number (589155 = T₁₀₈₅).

The spelling of 1055611 in words is "one million, fifty-five thousand, six hundred eleven".