16550207 has 4 divisors (see below), whose sum is σ = 16628856. Its totient is φ = 16471560.

The previous prime is 16550189. The next prime is 16550239. The reversal of 16550207 is 70205561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16550207 - 2¹² = 16546111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16550297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39008 + ... + 39429.

It is an arithmetic number, because the mean of its divisors is an integer number (4157214).

Almost surely, 2^16550207 is an apocalyptic number.

16550207 is a deficient number, since it is larger than the sum of its proper divisors (78649).

16550207 is an equidigital number, since it uses as much as digits as its factorization.

16550207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78648.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 16550207 is about 4068.1945627022. The cubic root of 16550207 is about 254.8401253403.

Adding to 16550207 its reverse (70205561), we get a palindrome (86755768).

The spelling of 16550207 in words is "sixteen million, five hundred fifty thousand, two hundred seven".