16530537 has 16 divisors (see below), whose sum is σ = 23224320. Its totient is φ = 10438032.

The previous prime is 16530523. The next prime is 16530539. The reversal of 16530537 is 73503561.

It is not a de Polignac number, because 16530537 - 2¹⁸ = 16268393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16530539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6264 + ... + 8502.

It is an arithmetic number, because the mean of its divisors is an integer number (1451520).

Almost surely, 2^16530537 is an apocalyptic number.

It is an amenable number.

16530537 is a deficient number, since it is larger than the sum of its proper divisors (6693783).

16530537 is a wasteful number, since it uses less digits than its factorization.

16530537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372.

The product of its (nonzero) digits is 9450, while the sum is 30.

The square root of 16530537 is about 4065.7763096363. The cubic root of 16530537 is about 254.7391257485.

The spelling of 16530537 in words is "sixteen million, five hundred thirty thousand, five hundred thirty-seven".