16049554 has 4 divisors (see below), whose sum is σ = 24074334. Its totient is φ = 8024776.

The previous prime is 16049531. The next prime is 16049587. The reversal of 16049554 is 45594061.

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

It can be written as a sum of positive squares in only one way, i.e., 15721225 + 328329 = 3965^2 + 573^2 .

It is an unprimeable number.

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, 4012387 + ... + 4012390.

Almost surely, 2^16049554 is an apocalyptic number.

16049554 is a deficient number, since it is larger than the sum of its proper divisors (8024780).

16049554 is an equidigital number, since it uses as much as digits as its factorization.

16049554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8024779.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 16049554 is about 4006.1894613211. The cubic root of 16049554 is about 252.2440840746.

The spelling of 16049554 in words is "sixteen million, forty-nine thousand, five hundred fifty-four".