16550038 has 4 divisors (see below), whose sum is σ = 24825060. Its totient is φ = 8275018.

The previous prime is 16549999. The next prime is 16550047. The reversal of 16550038 is 83005561.

16550038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 16549988 and 16550015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4137508 + ... + 4137511.

It is an arithmetic number, because the mean of its divisors is an integer number (6206265).

Almost surely, 2^16550038 is an apocalyptic number.

16550038 is a deficient number, since it is larger than the sum of its proper divisors (8275022).

16550038 is an equidigital number, since it uses as much as digits as its factorization.

16550038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8275021.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 16550038 is about 4068.1737917646. The cubic root of 16550038 is about 254.8392579165.

Adding to 16550038 its reverse (83005561), we get a palindrome (99555599).

The spelling of 16550038 in words is "sixteen million, five hundred fifty thousand, thirty-eight".