16553542 has 16 divisors (see below), whose sum is σ = 25339392. Its totient is φ = 8109000.

The previous prime is 16553539. The next prime is 16553549. The reversal of 16553542 is 24535561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16553549) 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 in 7 ways as a sum of consecutive naturals, for example, 21667 + ... + 22417.

It is an arithmetic number, because the mean of its divisors is an integer number (1583712).

Almost surely, 2^16553542 is an apocalyptic number.

16553542 is a deficient number, since it is larger than the sum of its proper divisors (8785850).

16553542 is a wasteful number, since it uses less digits than its factorization.

16553542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963.

The product of its digits is 18000, while the sum is 31.

The square root of 16553542 is about 4068.6044290395. The cubic root of 16553542 is about 254.8572416365.

The spelling of 16553542 in words is "sixteen million, five hundred fifty-three thousand, five hundred forty-two".