1055543 has 2 divisors, whose sum is σ = 1055544. Its totient is φ = 1055542.

The previous prime is 1055531. The next prime is 1055567. The reversal of 1055543 is 3455501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1055543 - 2¹⁸ = 793399 is a prime.

It is a super-2 number, since 2×1055543² = 2228342049698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1055503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527771 + 527772.

It is an arithmetic number, because the mean of its divisors is an integer number (527772).

2^1055543 is an apocalyptic number.

1055543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055543 is an equidigital number, since it uses as much as digits as its factorization.

1055543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 1055543 is about 1027.3962234698. The cubic root of 1055543 is about 101.8181753682.

The spelling of 1055543 in words is "one million, fifty-five thousand, five hundred forty-three".