16503053 has 12 divisors (see below), whose sum is σ = 19343520. Its totient is φ = 14037912.

The previous prime is 16503043. The next prime is 16503061. The reversal of 16503053 is 35030561.

It is a de Polignac number, because none of the positive numbers 2^k-16503053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16503023) 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, 5600 + ... + 8022.

It is an arithmetic number, because the mean of its divisors is an integer number (1611960).

Almost surely, 2^16503053 is an apocalyptic number.

It is an amenable number.

16503053 is a deficient number, since it is larger than the sum of its proper divisors (2840467).

16503053 is a wasteful number, since it uses less digits than its factorization.

16503053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2576 (or 2569 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 16503053 is about 4062.3949832580. The cubic root of 16503053 is about 254.5978693199.

The spelling of 16503053 in words is "sixteen million, five hundred three thousand, fifty-three".