16550075 has 6 divisors (see below), whose sum is σ = 20522124. Its totient is φ = 13240040.

The previous prime is 16550071. The next prime is 16550089. The reversal of 16550075 is 57005561.

It is not a de Polignac number, because 16550075 - 2² = 16550071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16550071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 330977 + ... + 331026.

It is an arithmetic number, because the mean of its divisors is an integer number (3420354).

Almost surely, 2^16550075 is an apocalyptic number.

16550075 is a deficient number, since it is larger than the sum of its proper divisors (3972049).

16550075 is an equidigital number, since it uses as much as digits as its factorization.

16550075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662013 (or 662008 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 16550075 is about 4068.1783392570. The cubic root of 16550075 is about 254.8394478264.

The spelling of 16550075 in words is "sixteen million, five hundred fifty thousand, seventy-five".