16530453 has 16 divisors (see below), whose sum is σ = 25152960. Its totient is φ = 10721808.

The previous prime is 16530427. The next prime is 16530463. The reversal of 16530453 is 35403561.

16530453 is a `hidden beast` number, since 1 + 653 + 0 + 4 + 5 + 3 = 666.

It is not a de Polignac number, because 16530453 - 2⁶ = 16530389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16530413) 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, 7275 + ... + 9272.

It is an arithmetic number, because the mean of its divisors is an integer number (1572060).

Almost surely, 2^16530453 is an apocalyptic number.

It is an amenable number.

16530453 is a deficient number, since it is larger than the sum of its proper divisors (8622507).

16530453 is a wasteful number, since it uses less digits than its factorization.

16530453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16593 (or 16587 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 16530453 is about 4065.7659794927. The cubic root of 16530453 is about 254.7386942618.

The spelling of 16530453 in words is "sixteen million, five hundred thirty thousand, four hundred fifty-three".