2056503 has 16 divisors (see below), whose sum is σ = 2921600. Its totient is φ = 1283040.

The previous prime is 2056501. The next prime is 2056517. The reversal of 2056503 is 3056502.

It is not a de Polignac number, because 2056503 - 2¹ = 2056501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2056503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6048 + ... + 6378.

It is an arithmetic number, because the mean of its divisors is an integer number (182600).

2^2056503 is an apocalyptic number.

2056503 is a deficient number, since it is larger than the sum of its proper divisors (865097).

2056503 is a wasteful number, since it uses less digits than its factorization.

2056503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 2056503 is about 1434.0512543142. The cubic root of 2056503 is about 127.1675924125.

Subtracting 2056503 from its reverse (3056502), we obtain a palindrome (999999).

The spelling of 2056503 in words is "two million, fifty-six thousand, five hundred three".