2053503 has 12 divisors (see below), whose sum is σ = 3003000. Its totient is φ = 1352016.

The previous prime is 2053459. The next prime is 2053507. The reversal of 2053503 is 3053502.

It is not a de Polignac number, because 2053503 - 2⁶ = 2053439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2053507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 628 + ... + 2121.

It is an arithmetic number, because the mean of its divisors is an integer number (250250).

2^2053503 is an apocalyptic number.

2053503 is a deficient number, since it is larger than the sum of its proper divisors (949497).

2053503 is a wasteful number, since it uses less digits than its factorization.

2053503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838 (or 2835 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 2053503 is about 1433.0048848486. The cubic root of 2053503 is about 127.1057255057.

Subtracting 2053503 from its reverse (3053502), we obtain a palindrome (999999).

It can be divided in two parts, 2053 and 503, that added together give a triangular number (2556 = T₇₁).

The spelling of 2053503 in words is "two million, fifty-three thousand, five hundred three".