16550313 has 32 divisors (see below), whose sum is σ = 24837120. Its totient is φ = 9737280.

The previous prime is 16550309. The next prime is 16550323. The reversal of 16550313 is 31305561.

It is not a de Polignac number, because 16550313 - 2² = 16550309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16550323) 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 31 ways as a sum of consecutive naturals, for example, 118998 + ... + 119136.

It is an arithmetic number, because the mean of its divisors is an integer number (776160).

Almost surely, 2^16550313 is an apocalyptic number.

16550313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16550313 is a deficient number, since it is larger than the sum of its proper divisors (8286807).

16550313 is a wasteful number, since it uses less digits than its factorization.

16550313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 16550313 is about 4068.2075905735. The cubic root of 16550313 is about 254.8406694019.

Adding to 16550313 its reverse (31305561), we get a palindrome (47855874).

The spelling of 16550313 in words is "sixteen million, five hundred fifty thousand, three hundred thirteen".