16553005 has 16 divisors (see below), whose sum is σ = 22788864. Its totient is φ = 11306880.

The previous prime is 16552973. The next prime is 16553041. The reversal of 16553005 is 50035561.

It is not a de Polignac number, because 16553005 - 2⁵ = 16552973 is a prime.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 10200 + ... + 11710.

It is an arithmetic number, because the mean of its divisors is an integer number (1424304).

Almost surely, 2^16553005 is an apocalyptic number.

It is an amenable number.

16553005 is a deficient number, since it is larger than the sum of its proper divisors (6235859).

16553005 is a wasteful number, since it uses less digits than its factorization.

16553005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 16553005 is about 4068.5384353598. The cubic root of 16553005 is about 254.8544857345.

Adding to 16553005 its reverse (50035561), we get a palindrome (66588566).

The spelling of 16553005 in words is "sixteen million, five hundred fifty-three thousand, five".