2053803 has 8 divisors (see below), whose sum is σ = 2790288. Its totient is φ = 1343264.

The previous prime is 2053789. The next prime is 2053811. The reversal of 2053803 is 3083502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2053803 - 2⁵ = 2053771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2053803.

It is not an unprimeable number, because it can be changed into a prime (2053873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6300 + ... + 6617.

It is an arithmetic number, because the mean of its divisors is an integer number (348786).

2^2053803 is an apocalyptic number.

2053803 is a deficient number, since it is larger than the sum of its proper divisors (736485).

2053803 is a wasteful number, since it uses less digits than its factorization.

2053803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12973.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2053803 is about 1433.1095561750. The cubic root of 2053803 is about 127.1119149068. Note that the first 3 decimals are identical.

The spelling of 2053803 in words is "two million, fifty-three thousand, eight hundred three".