1040555503 has 4 divisors (see below), whose sum is σ = 1120598248. Its totient is φ = 960512760.

The previous prime is 1040555471. The next prime is 1040555521. The reversal of 1040555503 is 3055550401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3055550401 = 27211 ⋅112291.

It is a cyclic number.

It is not a de Polignac number, because 1040555503 - 2⁵ = 1040555471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040555563) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 40021353 + ... + 40021378.

It is an arithmetic number, because the mean of its divisors is an integer number (280149562).

Almost surely, 2^1040555503 is an apocalyptic number.

1040555503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1040555503 is a deficient number, since it is larger than the sum of its proper divisors (80042745).

1040555503 is an equidigital number, since it uses as much as digits as its factorization.

1040555503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80042744.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 1040555503 is about 32257.6425518047. The cubic root of 1040555503 is about 1013.3397605226.

The spelling of 1040555503 in words is "one billion, forty million, five hundred fifty-five thousand, five hundred three".