16550540 has 24 divisors (see below), whose sum is σ = 35026992. Its totient is φ = 6568640.

The previous prime is 16550509. The next prime is 16550549. The reversal of 16550540 is 4505561.

16550540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (16550549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539 + ... + 5778.

It is an arithmetic number, because the mean of its divisors is an integer number (1459458).

Almost surely, 2^16550540 is an apocalyptic number.

16550540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16550540 is an abundant number, since it is smaller than the sum of its proper divisors (18476452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16550540 is a wasteful number, since it uses less digits than its factorization.

16550540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6457 (or 6455 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 16550540 is about 4068.2354897425. The cubic root of 16550540 is about 254.8418345071.

It can be divided in two parts, 165 and 50540, that added together give a palindrome (50705).

The spelling of 16550540 in words is "sixteen million, five hundred fifty thousand, five hundred forty".