16554469 has 4 divisors (see below), whose sum is σ = 16715296. Its totient is φ = 16393644.

The previous prime is 16554449. The next prime is 16554511. The reversal of 16554469 is 96445561.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96445561 = 29 ⋅3325709.

It is a cyclic number.

It is not a de Polignac number, because 16554469 - 2⁵ = 16554437 is a prime.

It is a super-2 number, since 2×16554469² = 548100887743922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16554449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80259 + ... + 80464.

It is an arithmetic number, because the mean of its divisors is an integer number (4178824).

Almost surely, 2^16554469 is an apocalyptic number.

It is an amenable number.

16554469 is a deficient number, since it is larger than the sum of its proper divisors (160827).

16554469 is a wasteful number, since it uses less digits than its factorization.

16554469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160826.

The product of its digits is 129600, while the sum is 40.

The square root of 16554469 is about 4068.7183485712. The cubic root of 16554469 is about 254.8619988914.

The spelling of 16554469 in words is "sixteen million, five hundred fifty-four thousand, four hundred sixty-nine".