1055503 has 2 divisors, whose sum is σ = 1055504. Its totient is φ = 1055502.

The previous prime is 1055501. The next prime is 1055531. The reversal of 1055503 is 3055501.

1055503 is nontrivially palindromic in base 9.

It is a weak prime.

It is an emirp because it is prime and its reverse (3055501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1055503 - 2¹ = 1055501 is a prime.

It is a super-2 number, since 2×1055503² = 2228173166018, which contains 22 as substring.

Together with 1055501, it forms a pair of twin primes.

1055503 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1055501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527751 + 527752.

It is an arithmetic number, because the mean of its divisors is an integer number (527752).

2^1055503 is an apocalyptic number.

1055503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055503 is an equidigital number, since it uses as much as digits as its factorization.

1055503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 1055503 is about 1027.3767565991. The cubic root of 1055503 is about 101.8168892123.

The spelling of 1055503 in words is "one million, fifty-five thousand, five hundred three".