16553873 has 8 divisors (see below), whose sum is σ = 19380480. Its totient is φ = 13842720.

The previous prime is 16553833. The next prime is 16553879. The reversal of 16553873 is 37835561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16553873 - 2¹² = 16549777 is a prime.

It is a super-2 number, since 2×16553873² = 548061422600258, which contains 22 as substring.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (16553879) 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, 28553 + ... + 29126.

It is an arithmetic number, because the mean of its divisors is an integer number (2422560).

Almost surely, 2^16553873 is an apocalyptic number.

It is an amenable number.

16553873 is a deficient number, since it is larger than the sum of its proper divisors (2826607).

16553873 is an equidigital number, since it uses as much as digits as its factorization.

16553873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57727.

The product of its digits is 75600, while the sum is 38.

The square root of 16553873 is about 4068.6451061748. The cubic root of 16553873 is about 254.8589403099.

The spelling of 16553873 in words is "sixteen million, five hundred fifty-three thousand, eight hundred seventy-three".