16550372 has 6 divisors (see below), whose sum is σ = 28963158. Its totient is φ = 8275184.

The previous prime is 16550371. The next prime is 16550381. The reversal of 16550372 is 27305561.

It can be written as a sum of positive squares in only one way, i.e., 14258176 + 2292196 = 3776^2 + 1514^2 .

It is not an unprimeable number, because it can be changed into a prime (16550371) 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 as a sum of consecutive naturals, namely, 2068793 + ... + 2068800.

It is an arithmetic number, because the mean of its divisors is an integer number (4827193).

Almost surely, 2^16550372 is an apocalyptic number.

It is an amenable number.

16550372 is a deficient number, since it is larger than the sum of its proper divisors (12412786).

16550372 is a wasteful number, since it uses less digits than its factorization.

16550372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4137597 (or 4137595 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 16550372 is about 4068.2148419178. The cubic root of 16550372 is about 254.8409722276.

The spelling of 16550372 in words is "sixteen million, five hundred fifty thousand, three hundred seventy-two".